Cálculo Exemplos

$\int_{0}^{π} 9 \sin^{2} (t) \cos^{4} (t) d t$

Etapa 1

Como $9$ é constante com relação a $t$ , mova $9$ para fora da integral.

$9 \int_{0}^{π} \sin^{2} (t) \cos^{4} (t) d t$

Etapa 2

Simplifique com fatoração.

Toque para ver mais passagens...

Etapa 2.1

Fatore $2$ de $4$ .

$9 \int_{0}^{π} \sin^{2} (t) {\cos (t)}^{2 (2)} d t$

Etapa 2.2

Reescreva ${\cos (t)}^{2 (2)}$ como exponenciação.

$9 \int_{0}^{π} \sin^{2} (t) {(\cos^{2} (t))}^{2} d t$

Etapa 3

Use a fórmula do arco metade para reescrever $\cos^{2} (t)$ como $\frac{1 + \cos (2 t)}{2}$ .

$9 \int_{0}^{π} \sin^{2} (t) {(\frac{1 + \cos (2 t)}{2})}^{2} d t$

Etapa 4

Use a fórmula do arco metade para reescrever $\sin^{2} (t)$ como $\frac{1 - \cos (2 t)}{2}$ .

$9 \int_{0}^{π} \frac{1 - \cos (2 t)}{2} {(\frac{1 + \cos (2 t)}{2})}^{2} d t$

Etapa 5

Deixe $u_{1} = 2 t$ . Depois, $d u_{1} = 2 d t$ , então, $\frac{1}{2} d u_{1} = d t$ . Reescreva usando $u_{1}$ e $d$ $u_{1}$ .

Toque para ver mais passagens...

Etapa 5.1

Deixe $u_{1} = 2 t$ . Encontre $\frac{d u_{1}}{d t}$ .

Toque para ver mais passagens...

Etapa 5.1.1

Diferencie $2 t$ .

$\frac{d}{d t} [2 t]$

Etapa 5.1.2

Como $2$ é constante em relação a $t$ , a derivada de $2 t$ em relação a $t$ é $2 \frac{d}{d t} [t]$ .

$2 \frac{d}{d t} [t]$

Etapa 5.1.3

Diferencie usando a regra da multiplicação de potências, que determina que $\frac{d}{d t} [t^{n}]$ é $n t^{n - 1}$ , em que $n = 1$ .

$2 \cdot 1$

Etapa 5.1.4

Multiplique $2$ por $1$ .

$2$

Etapa 5.2

Substitua o limite inferior por $t$ em $u_{1} = 2 t$ .

$u_{lower} = 2 \cdot 0$

Etapa 5.3

Multiplique $2$ por $0$ .

$u_{lower} = 0$

Etapa 5.4

Substitua o limite superior por $t$ em $u_{1} = 2 t$ .

$u_{upper} = 2 π$

Etapa 5.5

Os valores encontrados para $u_{lower}$ e $u_{upper}$ serão usados para avaliar a integral definida.

$u_{lower} = 0$

$u_{upper} = 2 π$

Etapa 5.6

Reescreva o problema usando $u_{1}$ , $d u_{1}$ e os novos limites de integração.

$9 \int_{0}^{2 π} \frac{1 - \cos (u_{1})}{2} {(\frac{1 + \cos (u_{1})}{2})}^{2} \frac{1}{2} d u_{1}$

Etapa 6

Simplifique multiplicando.

Toque para ver mais passagens...

Etapa 6.1

Simplifique.

Toque para ver mais passagens...

Etapa 6.1.1

Multiplique $\frac{1}{2}$ por $\frac{1 - \cos (u_{1})}{2}$ .

$9 \int_{0}^{2 π} \frac{1 - \cos (u_{1})}{2 \cdot 2} {(\frac{1 + \cos (u_{1})}{2})}^{2} d u_{1}$

Etapa 6.1.2

Multiplique $2$ por $2$ .

$9 \int_{0}^{2 π} \frac{1 - \cos (u_{1})}{4} {(\frac{1 + \cos (u_{1})}{2})}^{2} d u_{1}$

Etapa 6.2

Simplifique com comutação.

Toque para ver mais passagens...

Etapa 6.2.1

Reescreva $\frac{1 - \cos (u_{1})}{4}$ como um produto.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot (1 - \cos (u_{1})) {(\frac{1 + \cos (u_{1})}{2})}^{2} d u_{1}$

Etapa 6.2.2

Reescreva $\frac{1 + \cos (u_{1})}{2}$ como um produto.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot (1 - \cos (u_{1})) {(\frac{1}{2} \cdot (1 + \cos (u_{1})))}^{2} d u_{1}$

Etapa 6.3

Expanda $\frac{1}{4} \cdot (1 - \cos (u_{1})) {(\frac{1}{2} \cdot (1 + \cos (u_{1})))}^{2}$ .

Toque para ver mais passagens...

Etapa 6.3.1

Reescreva a exponenciação como um produto.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot (1 - \cos (u_{1})) (\frac{1}{2} \cdot (1 + \cos (u_{1})) (\frac{1}{2} \cdot (1 + \cos (u_{1})))) d u_{1}$

Etapa 6.3.2

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} (\frac{1}{4} \cdot 1 + \frac{1}{4} \cdot (- \cos (u_{1}))) (\frac{1}{2} \cdot (1 + \cos (u_{1})) (\frac{1}{2} \cdot (1 + \cos (u_{1})))) d u_{1}$

Etapa 6.3.3

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} (\frac{1}{4} \cdot 1 + \frac{1}{4} \cdot (- \cos (u_{1}))) ((\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{1})) (\frac{1}{2} \cdot (1 + \cos (u_{1})))) d u_{1}$

Etapa 6.3.4

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} (\frac{1}{4} \cdot 1 + \frac{1}{4} \cdot (- \cos (u_{1}))) ((\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{1})) (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.5

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} (\frac{1}{4} \cdot 1 + \frac{1}{4} \cdot (- \cos (u_{1}))) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{1})) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.6

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} (\frac{1}{4} \cdot 1 + \frac{1}{4} \cdot (- \cos (u_{1}))) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1})) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.7

Aplique a propriedade distributiva.

Etapa 6.3.8

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1})) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1})) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.9

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1})) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.10

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1})) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.11

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1})) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.12

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.13

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.14

Aplique a propriedade distributiva.

$9 \int_{0}^{2 π} \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.15

Reordene $\frac{1}{4}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot \frac{1}{4} (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.16

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot \frac{1}{4} (1 \cdot \frac{1}{2} (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.17

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot \frac{1}{4} (1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2})) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.18

Mova $\frac{1}{2}$ .

$9 \int_{0}^{2 π} 1 \cdot \frac{1}{4} (1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2}) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.19

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot \frac{1}{4} (1 \cdot 1 \frac{1}{2}) \cdot \frac{1}{2} + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.20

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot \frac{1}{4} (1 \cdot 1) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.21

Mova $\frac{1}{4}$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.22

Reordene $\frac{1}{4}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.23

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} (1 \cdot \frac{1}{2} (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.24

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} (1 \cdot \frac{1}{2} \frac{1}{2}) \cdot \cos (u_{1}) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.25

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} (1 \cdot \frac{1}{2}) \frac{1}{2} \cdot \cos (u_{1}) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.26

Mova $\frac{1}{4}$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.27

Reordene $\frac{1}{4}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot \frac{1}{4} (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.28

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot \frac{1}{4} (\frac{1}{2} \cdot \cos (u_{1}) (1 \cdot \frac{1}{2})) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.29

Mova $\cos (u_{1})$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot \frac{1}{4} (\frac{1}{2} \cdot 1 \cos (u_{1}) \cdot \frac{1}{2}) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.30

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot \frac{1}{4} (1 \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2}) + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.31

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot \frac{1}{4} (1 \cdot \frac{1}{2} \cos (u_{1})) \cdot \frac{1}{2} + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.32

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot \frac{1}{4} (1 \cdot \frac{1}{2}) \cos (u_{1}) \cdot \frac{1}{2} + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.33

Mova $\frac{1}{4}$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + \frac{1}{4} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.34

Reordene $\frac{1}{4}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.35

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} (\frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2}) \cdot \cos (u_{1}) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.36

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} (\frac{1}{2} \cdot \cos (u_{1})) \frac{1}{2} \cdot \cos (u_{1}) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.37

Reordene $\frac{1}{4}$ e $- 1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.38

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot \frac{1}{2} (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.39

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2})) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.40

Mova $\frac{1}{2}$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2}) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.41

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot 1 \frac{1}{2}) \cdot \frac{1}{2} + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.42

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot 1) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.43

Mova $\cos (u_{1})$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cdot 1 \cdot 1 \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.44

Mova $\frac{1}{4}$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.45

Reordene $\frac{1}{4}$ e $- 1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot \frac{1}{4} \cos (u_{1}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.46

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot \frac{1}{2} (\frac{1}{2} \cdot \cos (u_{1}))) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.47

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot \frac{1}{2} \frac{1}{2}) \cdot \cos (u_{1}) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.48

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot \frac{1}{2}) \frac{1}{2} \cdot \cos (u_{1}) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.49

Mova $\cos (u_{1})$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot \frac{1}{4} \cdot 1 \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.50

Mova $\frac{1}{4}$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.51

Reordene $\frac{1}{4}$ e $- 1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot 1)) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.52

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}) (1 \cdot \frac{1}{2})) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.53

Mova $\cos (u_{1})$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (\frac{1}{2} \cdot 1 \cos (u_{1}) \cdot \frac{1}{2}) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.54

Reordene $\frac{1}{2}$ e $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2}) + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.55

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot \frac{1}{2} \cos (u_{1})) \cdot \frac{1}{2} + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.56

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cos (u_{1}) (1 \cdot \frac{1}{2}) \cos (u_{1}) \cdot \frac{1}{2} + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.57

Mova $\cos (u_{1})$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot \frac{1}{4} \cdot 1 \cos (u_{1}) \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.58

Mova $\frac{1}{4}$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + \frac{1}{4} \cdot (- \cos (u_{1})) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.59

Reordene $\frac{1}{4}$ e $- 1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} - 1 \cdot \frac{1}{4} \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}))) d u_{1}$

Etapa 6.3.60

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} - 1 \cdot \frac{1}{4} \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2}) \cdot \cos (u_{1}) d u_{1}$

Etapa 6.3.61

Mova os parênteses.

$9 \int_{0}^{2 π} 1 \cdot 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{4} \frac{1}{2} \cdot \cos (u_{1}) \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \cdot \frac{1}{2} \cos (u_{1}) \cdot \frac{1}{2} - 1 \cdot \frac{1}{4} \cos (u_{1}) (\frac{1}{2} \cdot \cos (u_{1})) \frac{1}{2} \cdot \cos (u_{1}) d u_{1}$

Etapa 6.3.62

Multiplique $1$ por $1$ .

$9 \int_{0}^{2 π} 1 \cdot 1 \frac{1}{4} \frac{1}{2} \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.63

Multiplique $1$ por $1$ .

$9 \int_{0}^{2 π} 1 (\frac{1}{4}) \frac{1}{2} \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.64

Multiplique $\frac{1}{4}$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.65

Multiplique $\frac{1}{4}$ por $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{4 \cdot 2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.66

Multiplique $4$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{8} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.67

Multiplique $\frac{1}{8}$ por $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{8 \cdot 2} + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.68

Multiplique $8$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.69

Multiplique $1$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + 1 (\frac{1}{4}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.70

Multiplique $\frac{1}{4}$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{1}{4} \cdot \frac{1}{2} \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.71

Multiplique $\frac{1}{4}$ por $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{1}{4 \cdot 2} \cdot \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.72

Multiplique $4$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{1}{8} \cdot \frac{1}{2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.73

Multiplique $\frac{1}{8}$ por $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{1}{8 \cdot 2} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.74

Multiplique $8$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{1}{16} \cos (u_{1}) + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.75

Combine $\frac{1}{16}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + 1 \cdot 1 \frac{1}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.76

Multiplique $1$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.77

Multiplique $\frac{1}{4}$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.78

Multiplique $\frac{1}{4}$ por $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{1}{4 \cdot 2} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.79

Multiplique $4$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{1}{8} \cos (u_{1}) \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.80

Combine $\frac{1}{8}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{8} \cdot \frac{1}{2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.81

Multiplique $\frac{\cos (u_{1})}{8}$ por $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{8 \cdot 2} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.82

Multiplique $8$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + 1 (\frac{1}{4}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.83

Multiplique $\frac{1}{4}$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{1}{4} \cdot \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.84

Multiplique $\frac{1}{4}$ por $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{1}{4 \cdot 2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.85

Multiplique $4$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{1}{8} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.86

Combine $\frac{1}{8}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{8} \cdot \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.87

Multiplique $\frac{\cos (u_{1})}{8}$ por $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{8 \cdot 2} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.88

Multiplique $8$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} \cos (u_{1}) - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.89

Combine $\frac{\cos (u_{1})}{16}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1}) \cos (u_{1})}{16} - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.90

Eleve $\cos (u_{1})$ à potência de $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos^{1} (u_{1}) \cos (u_{1})}{16} - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.91

Eleve $\cos (u_{1})$ à potência de $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos^{1} (u_{1}) \cos^{1} (u_{1})}{16} - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.92

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{{\cos (u_{1})}^{1 + 1}}{16} - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.93

Some $1$ e $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.94

Some $\frac{\cos (u_{1})}{16}$ e $\frac{\cos (u_{1})}{16}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + 2 \frac{\cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.95

Combine $2$ e $\frac{\cos (u_{1})}{16}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - 1 \cdot 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.96

Multiplique $- 1$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.97

Multiplique $- 1$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.98

Combine $\frac{1}{4}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{4} \cdot \frac{1}{2} \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.99

Combine $- \frac{\cos (u_{1})}{4}$ e $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{4 \cdot 2} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.100

Multiplique $4$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{8} \cdot \frac{1}{2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.101

Combine $- \frac{\cos (u_{1})}{8}$ e $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{8 \cdot 2} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.102

Multiplique $8$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.103

Multiplique $- 1$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{1}{4} \cos (u_{1}) \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.104

Combine $\frac{1}{4}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos (u_{1})}{4} \cdot \frac{1}{2} \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.105

Combine $- \frac{\cos (u_{1})}{4}$ e $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos (u_{1})}{4 \cdot 2} \cdot \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.106

Multiplique $4$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos (u_{1})}{8} \cdot \frac{1}{2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.107

Combine $- \frac{\cos (u_{1})}{8}$ e $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos (u_{1})}{8 \cdot 2} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.108

Multiplique $8$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos (u_{1})}{16} \cos (u_{1}) - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.109

Combine $\frac{\cos (u_{1})}{16}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos (u_{1}) \cos (u_{1})}{16} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.110

Eleve $\cos (u_{1})$ à potência de $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{1} (u_{1}) \cos (u_{1})}{16} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.111

Eleve $\cos (u_{1})$ à potência de $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{1} (u_{1}) \cos^{1} (u_{1})}{16} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.112

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{{\cos (u_{1})}^{1 + 1}}{16} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.113

Some $1$ e $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - 1 \cdot 1 \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.114

Multiplique $- 1$ por $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{1}{4} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.115

Combine $\frac{1}{4}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{4} \cdot \frac{1}{2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.116

Combine $- \frac{\cos (u_{1})}{4}$ e $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{4 \cdot 2} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.117

Multiplique $4$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{8} \cos (u_{1}) \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.118

Combine $\frac{\cos (u_{1})}{8}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1}) \cos (u_{1})}{8} \cdot \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.119

Eleve $\cos (u_{1})$ à potência de $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{1} (u_{1}) \cos (u_{1})}{8} \cdot \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.120

Eleve $\cos (u_{1})$ à potência de $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{1} (u_{1}) \cos^{1} (u_{1})}{8} \cdot \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.121

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{{\cos (u_{1})}^{1 + 1}}{8} \cdot \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.122

Some $1$ e $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{8} \cdot \frac{1}{2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.123

Combine $- \frac{\cos^{2} (u_{1})}{8}$ e $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{8 \cdot 2} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.124

Multiplique $8$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - 1 (\frac{1}{4}) \cos (u_{1}) \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.125

Combine $\frac{1}{4}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - 1 \frac{\cos (u_{1})}{4} \frac{1}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.126

Combine $- 1 \frac{\cos (u_{1})}{4}$ e $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos (u_{1})}{4}}{2} \cos (u_{1}) \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.127

Combine $\frac{- 1 \frac{\cos (u_{1})}{4}}{2}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos (u_{1})}{4} \cos (u_{1})}{2} \cdot \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.128

Combine $\frac{\cos (u_{1})}{4}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos (u_{1}) \cos (u_{1})}{4}}{2} \cdot \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.129

Eleve $\cos (u_{1})$ à potência de $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{1} (u_{1}) \cos (u_{1})}{4}}{2} \cdot \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.130

Eleve $\cos (u_{1})$ à potência de $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{1} (u_{1}) \cos^{1} (u_{1})}{4}}{2} \cdot \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.131

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{{\cos (u_{1})}^{1 + 1}}{4}}{2} \cdot \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.132

Some $1$ e $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{2} (u_{1})}{4}}{2} \cdot \frac{1}{2} \cos (u_{1}) d u_{1}$

Etapa 6.3.133

Multiplique $\frac{- 1 \frac{\cos^{2} (u_{1})}{4}}{2}$ por $\frac{1}{2}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{2} (u_{1})}{4}}{2 \cdot 2} \cos (u_{1}) d u_{1}$

Etapa 6.3.134

Multiplique $2$ por $2$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{2} (u_{1})}{4}}{4} \cos (u_{1}) d u_{1}$

Etapa 6.3.135

Combine $\frac{- 1 \frac{\cos^{2} (u_{1})}{4}}{4}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{2} (u_{1})}{4} \cos (u_{1})}{4} d u_{1}$

Etapa 6.3.136

Combine $\frac{\cos^{2} (u_{1})}{4}$ e $\cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{2} (u_{1}) \cos (u_{1})}{4}}{4} d u_{1}$

Etapa 6.3.137

Eleve $\cos (u_{1})$ à potência de $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{2} (u_{1}) \cos^{1} (u_{1})}{4}}{4} d u_{1}$

Etapa 6.3.138

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{{\cos (u_{1})}^{2 + 1}}{4}}{4} d u_{1}$

Etapa 6.3.139

Some $2$ e $1$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} d u_{1}$

Etapa 6.3.140

Subtraia $\frac{\cos^{2} (u_{1})}{16}$ de $- \frac{\cos^{2} (u_{1})}{16}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} - 2 \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} d u_{1}$

Etapa 6.3.141

Combine $- 2$ e $\frac{\cos^{2} (u_{1})}{16}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{\cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} + \frac{- 2 \cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} d u_{1}$

Etapa 6.3.142

Reordene $\frac{2 \cos (u_{1})}{16}$ e $\frac{\cos^{2} (u_{1})}{16}$ .

$9 \int_{0}^{2 π} \frac{1}{16} + \frac{\cos^{2} (u_{1})}{16} + \frac{2 \cos (u_{1})}{16} - \frac{\cos (u_{1})}{16} + \frac{- 2 \cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} d u_{1}$

Etapa 6.3.143

Reordene $\frac{1}{16}$ e $\frac{\cos^{2} (u_{1})}{16}$ .

$9 \int_{0}^{2 π} \frac{\cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{2 \cos (u_{1})}{16} - \frac{\cos (u_{1})}{16} + \frac{- 2 \cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} d u_{1}$

Etapa 6.3.144

Reordene $\frac{- 2 \cos^{2} (u_{1})}{16}$ e $\frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4}$ .

$9 \int_{0}^{2 π} \frac{\cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{2 \cos (u_{1})}{16} - \frac{\cos (u_{1})}{16} + \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{- 2 \cos^{2} (u_{1})}{16} d u_{1}$

Etapa 6.3.145

Mova $- \frac{\cos (u_{1})}{16}$ .

$9 \int_{0}^{2 π} \frac{\cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{2 \cos (u_{1})}{16} + \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{- 2 \cos^{2} (u_{1})}{16} - \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.3.146

Mova $\frac{2 \cos (u_{1})}{16}$ .

$9 \int_{0}^{2 π} \frac{\cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{- 2 \cos^{2} (u_{1})}{16} + \frac{2 \cos (u_{1})}{16} - \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.3.147

Mova $\frac{1}{16}$ .

$9 \int_{0}^{2 π} \frac{\cos^{2} (u_{1})}{16} + \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{- 2 \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{2 \cos (u_{1})}{16} - \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.3.148

Reordene $\frac{\cos^{2} (u_{1})}{16}$ e $\frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4}$ .

$9 \int_{0}^{2 π} \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{\cos^{2} (u_{1})}{16} + \frac{- 2 \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{2 \cos (u_{1})}{16} - \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.3.149

Combine os numeradores em relação ao denominador comum.

$9 \int_{0}^{2 π} \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{\cos^{2} (u_{1}) - 2 \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{2 \cos (u_{1})}{16} - \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.3.150

Subtraia $2 \cos^{2} (u_{1})$ de $\cos^{2} (u_{1})$ .

$9 \int_{0}^{2 π} \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{- \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{2 \cos (u_{1})}{16} - \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.3.151

Combine os numeradores em relação ao denominador comum.

$9 \int_{0}^{2 π} \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{- \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{2 \cos (u_{1}) - \cos (u_{1})}{16} d u_{1}$

Etapa 6.3.152

Subtraia $\cos (u_{1})$ de $2 \cos (u_{1})$ .

$9 \int_{0}^{2 π} \frac{- 1 \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{- \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.4

Simplifique.

Toque para ver mais passagens...

Etapa 6.4.1

Reescreva $- 1 \frac{\cos^{3} (u_{1})}{4}$ como $- \frac{\cos^{3} (u_{1})}{4}$ .

$9 \int_{0}^{2 π} \frac{- \frac{\cos^{3} (u_{1})}{4}}{4} + \frac{- \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.4.2

Reescreva $\frac{- \frac{\cos^{3} (u_{1})}{4}}{4}$ como um produto.

$9 \int_{0}^{2 π} - \frac{\cos^{3} (u_{1})}{4} \cdot \frac{1}{4} + \frac{- \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.4.3

Multiplique $\frac{1}{4}$ por $\frac{\cos^{3} (u_{1})}{4}$ .

$9 \int_{0}^{2 π} - \frac{\cos^{3} (u_{1})}{4 \cdot 4} + \frac{- \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.4.4

Multiplique $4$ por $4$ .

$9 \int_{0}^{2 π} - \frac{\cos^{3} (u_{1})}{16} + \frac{- \cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 6.4.5

Mova o número negativo para a frente da fração.

$9 \int_{0}^{2 π} - \frac{\cos^{3} (u_{1})}{16} - \frac{\cos^{2} (u_{1})}{16} + \frac{1}{16} + \frac{\cos (u_{1})}{16} d u_{1}$

Etapa 7

Divida a integral única em várias integrais.

$9 (\int_{0}^{2 π} - \frac{\cos^{3} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 8

Como $- 1$ é constante com relação a $u_{1}$ , mova $- 1$ para fora da integral.

$9 (- \int_{0}^{2 π} \frac{\cos^{3} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 9

Como $\frac{1}{16}$ é constante com relação a $u_{1}$ , mova $\frac{1}{16}$ para fora da integral.

$9 (- (\frac{1}{16} \int_{0}^{2 π} \cos^{3} (u_{1}) d u_{1}) + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 10

Fatore $\cos^{2} (u_{1})$ .

$9 (- \frac{1}{16} \int_{0}^{2 π} \cos^{2} (u_{1}) \cos (u_{1}) d u_{1} + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 11

Usando a fórmula de Pitágoras, reescreva $\cos^{2} (u_{1})$ como $1 - \sin^{2} (u_{1})$ .

$9 (- \frac{1}{16} \int_{0}^{2 π} (1 - \sin^{2} (u_{1})) \cos (u_{1}) d u_{1} + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 12

Deixe $u_{2} = \sin (u_{1})$ . Depois, $d u_{2} = \cos (u_{1}) d u_{1}$ , então, $\frac{1}{\cos (u_{1})} d u_{2} = d u_{1}$ . Reescreva usando $u_{2}$ e $d$ $u_{2}$ .

Toque para ver mais passagens...

Etapa 12.1

Deixe $u_{2} = \sin (u_{1})$ . Encontre $\frac{d u_{2}}{d u_{1}}$ .

Toque para ver mais passagens...

Etapa 12.1.1

Diferencie $\sin (u_{1})$ .

$\frac{d}{d u_{1}} [\sin (u_{1})]$

Etapa 12.1.2

A derivada de $\sin (u_{1})$ em relação a $u_{1}$ é $\cos (u_{1})$ .

$\cos (u_{1})$

Etapa 12.2

Substitua o limite inferior por $u_{1}$ em $u_{2} = \sin (u_{1})$ .

$u_{lower} = \sin (0)$

Etapa 12.3

O valor exato de $\sin (0)$ é $0$ .

$u_{lower} = 0$

Etapa 12.4

Substitua o limite superior por $u_{1}$ em $u_{2} = \sin (u_{1})$ .

$u_{upper} = \sin (2 π)$

Etapa 12.5

Simplifique.

Toque para ver mais passagens...

Etapa 12.5.1

Subtraia as rotações completas de $2 π$ até que o ângulo fique maior do que ou igual a $0$ e menor do que $2 π$ .

$u_{upper} = \sin (0)$

Etapa 12.5.2

O valor exato de $\sin (0)$ é $0$ .

$u_{upper} = 0$

Etapa 12.6

Os valores encontrados para $u_{lower}$ e $u_{upper}$ serão usados para avaliar a integral definida.

$u_{lower} = 0$

$u_{upper} = 0$

Etapa 12.7

Reescreva o problema usando $u_{2}$ , $d u_{2}$ e os novos limites de integração.

$9 (- \frac{1}{16} \int_{0}^{0} 1 - {u_{2}}^{2} d u_{2} + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 13

Divida a integral única em várias integrais.

$9 (- \frac{1}{16} (\int_{0}^{0} d u_{2} + \int_{0}^{0} - {u_{2}}^{2} d u_{2}) + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 14

Aplique a regra da constante.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} + \int_{0}^{0} - {u_{2}}^{2} d u_{2}) + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 15

Como $- 1$ é constante com relação a $u_{2}$ , mova $- 1$ para fora da integral.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - \int_{0}^{0} {u_{2}}^{2} d u_{2}) + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 16

De acordo com a regra da multiplicação de potências, a integral de ${u_{2}}^{2}$ com relação a $u_{2}$ é $\frac{1}{3} {u_{2}}^{3}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{1}{3} {u_{2}}^{3}]_{0}^{0})) + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 17

Combine $\frac{1}{3}$ e ${u_{2}}^{3}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \int_{0}^{2 π} - \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 18

Como $- 1$ é constante com relação a $u_{1}$ , mova $- 1$ para fora da integral.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \int_{0}^{2 π} \frac{\cos^{2} (u_{1})}{16} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 19

Como $\frac{1}{16}$ é constante com relação a $u_{1}$ , mova $\frac{1}{16}$ para fora da integral.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - (\frac{1}{16} \int_{0}^{2 π} \cos^{2} (u_{1}) d u_{1}) + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 20

Use a fórmula do arco metade para reescrever $\cos^{2} (u_{1})$ como $\frac{1 + \cos (2 u_{1})}{2}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{16} \int_{0}^{2 π} \frac{1 + \cos (2 u_{1})}{2} d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 21

Como $\frac{1}{2}$ é constante com relação a $u_{1}$ , mova $\frac{1}{2}$ para fora da integral.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{16} (\frac{1}{2} \int_{0}^{2 π} 1 + \cos (2 u_{1}) d u_{1}) + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 22

Simplifique.

Toque para ver mais passagens...

Etapa 22.1

Multiplique $\frac{1}{2}$ por $\frac{1}{16}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{2 \cdot 16} \int_{0}^{2 π} 1 + \cos (2 u_{1}) d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 22.2

Multiplique $2$ por $16$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} \int_{0}^{2 π} 1 + \cos (2 u_{1}) d u_{1} + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 23

Divida a integral única em várias integrais.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (\int_{0}^{2 π} d u_{1} + \int_{0}^{2 π} \cos (2 u_{1}) d u_{1}) + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 24

Aplique a regra da constante.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (u_{1}]_{0}^{2 π} + \int_{0}^{2 π} \cos (2 u_{1}) d u_{1}) + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 25

Deixe $u_{3} = 2 u_{1}$ . Depois, $d u_{3} = 2 d u_{1}$ , então, $\frac{1}{2} d u_{3} = d u_{1}$ . Reescreva usando $u_{3}$ e $d$ $u_{3}$ .

Toque para ver mais passagens...

Etapa 25.1

Deixe $u_{3} = 2 u_{1}$ . Encontre $\frac{d u_{3}}{d u_{1}}$ .

Toque para ver mais passagens...

Etapa 25.1.1

Diferencie $2 u_{1}$ .

$\frac{d}{d u_{1}} [2 u_{1}]$

Etapa 25.1.2

Como $2$ é constante em relação a $u_{1}$ , a derivada de $2 u_{1}$ em relação a $u_{1}$ é $2 \frac{d}{d u_{1}} [u_{1}]$ .

$2 \frac{d}{d u_{1}} [u_{1}]$

Etapa 25.1.3

Diferencie usando a regra da multiplicação de potências, que determina que $\frac{d}{d u_{1}} [{u_{1}}^{n}]$ é $n {u_{1}}^{n - 1}$ , em que $n = 1$ .

$2 \cdot 1$

Etapa 25.1.4

Multiplique $2$ por $1$ .

$2$

Etapa 25.2

Substitua o limite inferior por $u_{1}$ em $u_{3} = 2 u_{1}$ .

$u_{lower} = 2 \cdot 0$

Etapa 25.3

Multiplique $2$ por $0$ .

$u_{lower} = 0$

Etapa 25.4

Substitua o limite superior por $u_{1}$ em $u_{3} = 2 u_{1}$ .

$u_{upper} = 2 (2 π)$

Etapa 25.5

Multiplique $2$ por $2$ .

$u_{upper} = 4 π$

Etapa 25.6

Os valores encontrados para $u_{lower}$ e $u_{upper}$ serão usados para avaliar a integral definida.

$u_{lower} = 0$

$u_{upper} = 4 π$

Etapa 25.7

Reescreva o problema usando $u_{3}$ , $d u_{3}$ e os novos limites de integração.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (u_{1}]_{0}^{2 π} + \int_{0}^{4 π} \cos (u_{3}) \frac{1}{2} d u_{3}) + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 26

Combine $\cos (u_{3})$ e $\frac{1}{2}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (u_{1}]_{0}^{2 π} + \int_{0}^{4 π} \frac{\cos (u_{3})}{2} d u_{3}) + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 27

Como $\frac{1}{2}$ é constante com relação a $u_{3}$ , mova $\frac{1}{2}$ para fora da integral.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{1}{2} \int_{0}^{4 π} \cos (u_{3}) d u_{3}) + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 28

A integral de $\cos (u_{3})$ com relação a $u_{3}$ é $\sin (u_{3})$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{1}{2} \sin (u_{3})]_{0}^{4 π}) + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 29

Combine $\frac{1}{2}$ e $\sin (u_{3})]_{0}^{4 π}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \int_{0}^{2 π} \frac{1}{16} d u_{1} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 30

Aplique a regra da constante.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \frac{1}{16} u_{1}]_{0}^{2 π} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 31

Combine $\frac{1}{16}$ e $u_{1}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \frac{u_{1}}{16}]_{0}^{2 π} + \int_{0}^{2 π} \frac{\cos (u_{1})}{16} d u_{1})$

Etapa 32

Como $\frac{1}{16}$ é constante com relação a $u_{1}$ , mova $\frac{1}{16}$ para fora da integral.

Etapa 33

A integral de $\cos (u_{1})$ com relação a $u_{1}$ é $\sin (u_{1})$ .

Etapa 34

Simplifique.

Toque para ver mais passagens...

Etapa 34.1

Combine $\frac{1}{16}$ e $\sin (u_{1})]_{0}^{2 π}$ .

Etapa 34.2

Para escrever $- \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2})$ como fração com um denominador comum, multiplique por $\frac{16}{16}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) - \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) \cdot \frac{16}{16} + \frac{\sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 34.3

Combine $- \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2})$ e $\frac{16}{16}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \frac{- \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) \cdot 16}{16} + \frac{\sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 34.4

Combine os numeradores em relação ao denominador comum.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \frac{- \frac{1}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) \cdot 16 + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 34.5

Multiplique $16$ por $- 1$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \frac{- 16 (\frac{1}{32}) (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 34.6

Combine $- 16$ e $\frac{1}{32}$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \frac{\frac{- 16}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 34.7

Cancele o fator comum de $- 16$ e $32$ .

Toque para ver mais passagens...

Etapa 34.7.1

Fatore $16$ de $- 16$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \frac{\frac{16 (- 1)}{32} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 34.7.2

Cancele os fatores comuns.

Toque para ver mais passagens...

Etapa 34.7.2.1

Fatore $16$ de $32$ .

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \frac{\frac{16 \cdot - 1}{16 \cdot 2} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 34.7.2.2

Cancele o fator comum.

Etapa 34.7.2.3

Reescreva a expressão.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \frac{\frac{- 1}{2} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 34.8

Mova o número negativo para a frente da fração.

$9 (- \frac{1}{16} (u_{2}]_{0}^{0} - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \frac{- \frac{1}{2} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 35

Substitua e simplifique.

Toque para ver mais passagens...

Etapa 35.1

Avalie $u_{2}$ em $0$ e em $0$ .

$9 (- \frac{1}{16} ((0) + 0 - (\frac{{u_{2}}^{3}}{3}]_{0}^{0})) + \frac{- \frac{1}{2} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 35.2

Avalie $\frac{{u_{2}}^{3}}{3}$ em $0$ e em $0$ .

$9 (- \frac{1}{16} ((0) + 0 - ((\frac{0^{3}}{3}) - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} (u_{1}]_{0}^{2 π} + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 35.3

Avalie $u_{1}$ em $2 π$ e em $0$ .

$9 (- \frac{1}{16} ((0) + 0 - ((\frac{0^{3}}{3}) - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{\sin (u_{3})]_{0}^{4 π}}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 35.4

Avalie $\sin (u_{3})$ em $4 π$ e em $0$ .

$9 (- \frac{1}{16} ((0) + 0 - ((\frac{0^{3}}{3}) - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + \sin (u_{1})]_{0}^{2 π}}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 35.5

Avalie $\sin (u_{1})$ em $2 π$ e em $0$ .

$9 (- \frac{1}{16} ((0) + 0 - ((\frac{0^{3}}{3}) - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + \frac{u_{1}}{16}]_{0}^{2 π})$

Etapa 35.6

Avalie $\frac{u_{1}}{16}$ em $2 π$ e em $0$ .

$9 (- \frac{1}{16} ((0) + 0 - ((\frac{0^{3}}{3}) - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7

Simplifique.

Toque para ver mais passagens...

Etapa 35.7.1

Some $0$ e $0$ .

$9 (- \frac{1}{16} (0 - ((\frac{0^{3}}{3}) - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.2

Elevar $0$ a qualquer potência positiva produz $0$ .

$9 (- \frac{1}{16} (0 - (\frac{0}{3} - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.3

Cancele o fator comum de $0$ e $3$ .

Toque para ver mais passagens...

Etapa 35.7.3.1

Fatore $3$ de $0$ .

$9 (- \frac{1}{16} (0 - (\frac{3 (0)}{3} - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.3.2

Cancele os fatores comuns.

Toque para ver mais passagens...

Etapa 35.7.3.2.1

Fatore $3$ de $3$ .

$9 (- \frac{1}{16} (0 - (\frac{3 \cdot 0}{3 \cdot 1} - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.3.2.2

Cancele o fator comum.

Etapa 35.7.3.2.3

Reescreva a expressão.

$9 (- \frac{1}{16} (0 - (\frac{0}{1} - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.3.2.4

Divida $0$ por $1$ .

$9 (- \frac{1}{16} (0 - (0 - \frac{0^{3}}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.4

Elevar $0$ a qualquer potência positiva produz $0$ .

$9 (- \frac{1}{16} (0 - (0 - \frac{0}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.5

Cancele o fator comum de $0$ e $3$ .

Toque para ver mais passagens...

Etapa 35.7.5.1

Fatore $3$ de $0$ .

$9 (- \frac{1}{16} (0 - (0 - \frac{3 (0)}{3})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.5.2

Cancele os fatores comuns.

Toque para ver mais passagens...

Etapa 35.7.5.2.1

Fatore $3$ de $3$ .

$9 (- \frac{1}{16} (0 - (0 - \frac{3 \cdot 0}{3 \cdot 1})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.5.2.2

Cancele o fator comum.

$9 (- \frac{1}{16} (0 - (0 - \frac{3 \cdot 0}{3 \cdot 1})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.5.2.3

Reescreva a expressão.

$9 (- \frac{1}{16} (0 - (0 - \frac{0}{1})) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.5.2.4

Divida $0$ por $1$ .

$9 (- \frac{1}{16} (0 - (0 - 0)) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.6

Multiplique $- 1$ por $0$ .

$9 (- \frac{1}{16} (0 - (0 + 0)) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.7

Some $0$ e $0$ .

$9 (- \frac{1}{16} (0 - 0) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.8

Multiplique $- 1$ por $0$ .

$9 (- \frac{1}{16} (0 + 0) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.9

Some $0$ e $0$ .

$9 (- \frac{1}{16} \cdot 0 + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.10

Multiplique $0$ por $- 1$ .

$9 (0 (\frac{1}{16}) + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.11

Multiplique $0$ por $\frac{1}{16}$ .

$9 (0 + \frac{- \frac{1}{2} ((2 π) + 0 + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.12

Some $2 π$ e $0$ .

$9 (0 + \frac{- \frac{1}{2} (2 π + \frac{(\sin (4 π)) - \sin (0)}{2}) + (\sin (2 π)) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.13

Subtraia $- \frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16}$ de $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + (\frac{2 π}{16}) - \frac{0}{16})$

Etapa 35.7.14

Cancele o fator comum de $2$ e $16$ .

Toque para ver mais passagens...

Etapa 35.7.14.1

Fatore $2$ de $2 π$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{2 (π)}{16} - \frac{0}{16})$

Etapa 35.7.14.2

Cancele os fatores comuns.

Toque para ver mais passagens...

Etapa 35.7.14.2.1

Fatore $2$ de $16$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{2 π}{2 \cdot 8} - \frac{0}{16})$

Etapa 35.7.14.2.2

Cancele o fator comum.

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{2 π}{2 \cdot 8} - \frac{0}{16})$

Etapa 35.7.14.2.3

Reescreva a expressão.

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{π}{8} - \frac{0}{16})$

Etapa 35.7.15

Cancele o fator comum de $0$ e $16$ .

Toque para ver mais passagens...

Etapa 35.7.15.1

Fatore $16$ de $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{π}{8} - \frac{16 (0)}{16})$

Etapa 35.7.15.2

Cancele os fatores comuns.

Toque para ver mais passagens...

Etapa 35.7.15.2.1

Fatore $16$ de $16$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{π}{8} - \frac{16 \cdot 0}{16 \cdot 1})$

Etapa 35.7.15.2.2

Cancele o fator comum.

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{π}{8} - \frac{16 \cdot 0}{16 \cdot 1})$

Etapa 35.7.15.2.3

Reescreva a expressão.

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{π}{8} - \frac{0}{1})$

Etapa 35.7.15.2.4

Divida $0$ por $1$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{π}{8} - 0)$

Etapa 35.7.16

Multiplique $- 1$ por $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{π}{8} + 0)$

Etapa 35.7.17

Some $\frac{π}{8}$ e $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - \sin (0)}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{π}{8})$

Etapa 36

Simplifique.

Toque para ver mais passagens...

Etapa 36.1

O valor exato de $\sin (0)$ é $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - 0}{2}) + \sin (2 π) - \sin (0)}{16} + \frac{π}{8})$

Etapa 36.2

O valor exato de $\sin (0)$ é $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) - 0}{2}) + \sin (2 π) - 0}{16} + \frac{π}{8})$

Etapa 36.3

Multiplique $- 1$ por $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π) + 0}{2}) + \sin (2 π) - 0}{16} + \frac{π}{8})$

Etapa 36.4

Some $\sin (4 π)$ e $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π)}{2}) + \sin (2 π) - 0}{16} + \frac{π}{8})$

Etapa 36.5

Multiplique $- 1$ por $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π)}{2}) + \sin (2 π) + 0}{16} + \frac{π}{8})$

Etapa 36.6

Some $- \frac{1}{2} (2 π + \frac{\sin (4 π)}{2}) + \sin (2 π)$ e $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (4 π)}{2}) + \sin (2 π)}{16} + \frac{π}{8})$

Etapa 37

Simplifique.

Toque para ver mais passagens...

Etapa 37.1

Simplifique cada termo.

Toque para ver mais passagens...

Etapa 37.1.1

Simplifique o numerador.

Toque para ver mais passagens...

Etapa 37.1.1.1

Subtraia as rotações completas de $2 π$ até que o ângulo fique maior do que ou igual a $0$ e menor do que $2 π$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{\sin (0)}{2}) + \sin (2 π)}{16} + \frac{π}{8})$

Etapa 37.1.1.2

O valor exato de $\sin (0)$ é $0$ .

$9 (\frac{- \frac{1}{2} (2 π + \frac{0}{2}) + \sin (2 π)}{16} + \frac{π}{8})$

Etapa 37.1.2

Divida $0$ por $2$ .

$9 (\frac{- \frac{1}{2} (2 π + 0) + \sin (2 π)}{16} + \frac{π}{8})$

Etapa 37.2

Some $2 π$ e $0$ .

$9 (\frac{- \frac{1}{2} (2 π) + \sin (2 π)}{16} + \frac{π}{8})$

Etapa 37.3

Cancele o fator comum de $2$ .

Toque para ver mais passagens...

Etapa 37.3.1

Mova o negativo de maior ordem em $- \frac{1}{2}$ para o numerador.

$9 (\frac{\frac{- 1}{2} (2 π) + \sin (2 π)}{16} + \frac{π}{8})$

Etapa 37.3.2

Fatore $2$ de $2 π$ .

$9 (\frac{\frac{- 1}{2} (2 (π)) + \sin (2 π)}{16} + \frac{π}{8})$

Etapa 37.3.3

Cancele o fator comum.

$9 (\frac{\frac{- 1}{2} (2 π) + \sin (2 π)}{16} + \frac{π}{8})$

Etapa 37.3.4

Reescreva a expressão.

$9 (\frac{- π + \sin (2 π)}{16} + \frac{π}{8})$

Etapa 37.4

Simplifique cada termo.

Toque para ver mais passagens...

Etapa 37.4.1

Simplifique o numerador.

Toque para ver mais passagens...

Etapa 37.4.1.1

Subtraia as rotações completas de $2 π$ até que o ângulo fique maior do que ou igual a $0$ e menor do que $2 π$ .

$9 (\frac{- π + \sin (0)}{16} + \frac{π}{8})$

Etapa 37.4.1.2

O valor exato de $\sin (0)$ é $0$ .

$9 (\frac{- π + 0}{16} + \frac{π}{8})$

Etapa 37.4.1.3

Some $- π$ e $0$ .

$9 (\frac{- π}{16} + \frac{π}{8})$

Etapa 37.4.2

Mova o número negativo para a frente da fração.

$9 (- \frac{π}{16} + \frac{π}{8})$

Etapa 37.5

Para escrever $\frac{π}{8}$ como fração com um denominador comum, multiplique por $\frac{2}{2}$ .

$9 (- \frac{π}{16} + \frac{π}{8} \cdot \frac{2}{2})$

Etapa 37.6

Escreva cada expressão com um denominador comum de $16$ , multiplicando cada um por um fator apropriado de $1$ .

Toque para ver mais passagens...

Etapa 37.6.1

Multiplique $\frac{π}{8}$ por $\frac{2}{2}$ .

$9 (- \frac{π}{16} + \frac{π \cdot 2}{8 \cdot 2})$

Etapa 37.6.2

Multiplique $8$ por $2$ .

$9 (- \frac{π}{16} + \frac{π \cdot 2}{16})$

Etapa 37.7

Combine os numeradores em relação ao denominador comum.

$9 \frac{- π + π \cdot 2}{16}$

Etapa 37.8

Mova $2$ para a esquerda de $π$ .

$9 \frac{- π + 2 \cdot π}{16}$

Etapa 37.9

Some $- π$ e $2 π$ .

$9 \frac{π}{16}$

Etapa 37.10

Combine $9$ e $\frac{π}{16}$ .

$\frac{9 π}{16}$

Etapa 38

O resultado pode ser mostrado de várias formas.

Forma exata:

$\frac{9 π}{16}$

Forma decimal:

$1.76714586 \dots$