Calculus Examples

$g (x) = {((\frac{5}{6}) \csc (\frac{x}{6}))}^{2}$

Step 1

Combine $\frac{5}{6}$ and $\csc (\frac{x}{6})$ .

$\frac{d}{d x} [{(\frac{5 \csc (\frac{x}{6})}{6})}^{2}]$

Step 2

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{2}$ and $g (x) = \frac{5 \csc (\frac{x}{6})}{6}$ .

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Step 2.1

To apply the Chain Rule, set $u_{1}$ as $\frac{5 \csc (\frac{x}{6})}{6}$ .

$\frac{d}{d u_{1}} [{u_{1}}^{2}] \frac{d}{d x} [\frac{5 \csc (\frac{x}{6})}{6}]$

Step 2.2

Differentiate using the Power Rule which states that $\frac{d}{d u_{1}} [{u_{1}}^{n}]$ is $n {u_{1}}^{n - 1}$ where $n = 2$ .

$2 u_{1} \frac{d}{d x} [\frac{5 \csc (\frac{x}{6})}{6}]$

Step 2.3

Replace all occurrences of $u_{1}$ with $\frac{5 \csc (\frac{x}{6})}{6}$ .

$2 \frac{5 \csc (\frac{x}{6})}{6} \frac{d}{d x} [\frac{5 \csc (\frac{x}{6})}{6}]$

Step 3

Differentiate using the Constant Multiple Rule.

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Step 3.1

Combine $2$ and $\frac{5 \csc (\frac{x}{6})}{6}$ .

$\frac{2 (5 \csc (\frac{x}{6}))}{6} \frac{d}{d x} [\frac{5 \csc (\frac{x}{6})}{6}]$

Step 3.2

Reduce the expression by cancelling the common factors.

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Step 3.2.1

Multiply $5$ by $2$ .

$\frac{10 \csc (\frac{x}{6})}{6} \frac{d}{d x} [\frac{5 \csc (\frac{x}{6})}{6}]$

Step 3.2.2

Cancel the common factor of $10$ and $6$ .

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Step 3.2.2.1

Factor $2$ out of $10 \csc (\frac{x}{6})$ .

$\frac{2 (5 \csc (\frac{x}{6}))}{6} \frac{d}{d x} [\frac{5 \csc (\frac{x}{6})}{6}]$

Step 3.2.2.2

Cancel the common factors.

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Step 3.2.2.2.1

Factor $2$ out of $6$ .

$\frac{2 (5 \csc (\frac{x}{6}))}{2 (3)} \frac{d}{d x} [\frac{5 \csc (\frac{x}{6})}{6}]$

Step 3.2.2.2.2

Cancel the common factor.

$\frac{2 (5 \csc (\frac{x}{6}))}{2 \cdot 3} \frac{d}{d x} [\frac{5 \csc (\frac{x}{6})}{6}]$

Step 3.2.2.2.3

Rewrite the expression.

$\frac{5 \csc (\frac{x}{6})}{3} \frac{d}{d x} [\frac{5 \csc (\frac{x}{6})}{6}]$

Step 3.3

Since $\frac{5}{6}$ is constant with respect to $x$ , the derivative of $\frac{5 \csc (\frac{x}{6})}{6}$ with respect to $x$ is $\frac{5}{6} \frac{d}{d x} [\csc (\frac{x}{6})]$ .

$\frac{5 \csc (\frac{x}{6})}{3} (\frac{5}{6} \frac{d}{d x} [\csc (\frac{x}{6})])$

Step 3.4

Combine fractions.

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Step 3.4.1

Multiply $\frac{5}{6}$ by $\frac{5 \csc (\frac{x}{6})}{3}$ .

$\frac{5 (5 \csc (\frac{x}{6}))}{6 \cdot 3} \frac{d}{d x} [\csc (\frac{x}{6})]$

Step 3.4.2

Multiply.

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Step 3.4.2.1

Multiply $5$ by $5$ .

$\frac{25 \csc (\frac{x}{6})}{6 \cdot 3} \frac{d}{d x} [\csc (\frac{x}{6})]$

Step 3.4.2.2

Multiply $6$ by $3$ .

$\frac{25 \csc (\frac{x}{6})}{18} \frac{d}{d x} [\csc (\frac{x}{6})]$

Step 4

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = \csc (x)$ and $g (x) = \frac{x}{6}$ .

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Step 4.1

To apply the Chain Rule, set $u_{2}$ as $\frac{x}{6}$ .

$\frac{25 \csc (\frac{x}{6})}{18} (\frac{d}{d u_{2}} [\csc (u_{2})] \frac{d}{d x} [\frac{x}{6}])$

Step 4.2

The derivative of $\csc (u_{2})$ with respect to $u_{2}$ is $- \csc (u_{2}) \cot (u_{2})$ .

$\frac{25 \csc (\frac{x}{6})}{18} (- \csc (u_{2}) \cot (u_{2}) \frac{d}{d x} [\frac{x}{6}])$

Step 4.3

Replace all occurrences of $u_{2}$ with $\frac{x}{6}$ .

$\frac{25 \csc (\frac{x}{6})}{18} (- \csc (\frac{x}{6}) \cot (\frac{x}{6}) \frac{d}{d x} [\frac{x}{6}])$

Step 5

Combine $\frac{25 \csc (\frac{x}{6})}{18}$ and $\csc (\frac{x}{6})$ .

$- \frac{25 \csc (\frac{x}{6}) \csc (\frac{x}{6})}{18} \cot (\frac{x}{6}) \frac{d}{d x} [\frac{x}{6}]$

Step 6

Raise $\csc (\frac{x}{6})$ to the power of $1$ .

$- \frac{25 (\csc^{1} (\frac{x}{6}) \csc (\frac{x}{6}))}{18} \cot (\frac{x}{6}) \frac{d}{d x} [\frac{x}{6}]$

Step 7

Raise $\csc (\frac{x}{6})$ to the power of $1$ .

$- \frac{25 (\csc^{1} (\frac{x}{6}) \csc^{1} (\frac{x}{6}))}{18} \cot (\frac{x}{6}) \frac{d}{d x} [\frac{x}{6}]$

Step 8

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$- \frac{25 {\csc (\frac{x}{6})}^{1 + 1}}{18} \cot (\frac{x}{6}) \frac{d}{d x} [\frac{x}{6}]$

Step 9

Combine fractions.

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Step 9.1

Add $1$ and $1$ .

$- \frac{25 \csc^{2} (\frac{x}{6})}{18} \cot (\frac{x}{6}) \frac{d}{d x} [\frac{x}{6}]$

Step 9.2

Combine $\cot (\frac{x}{6})$ and $\frac{25 \csc^{2} (\frac{x}{6})}{18}$ .

$- \frac{\cot (\frac{x}{6}) (25 \csc^{2} (\frac{x}{6}))}{18} \frac{d}{d x} [\frac{x}{6}]$

Step 9.3

Move $25$ to the left of $\cot (\frac{x}{6})$ .

$- \frac{25 \cdot \cot (\frac{x}{6}) \csc^{2} (\frac{x}{6})}{18} \frac{d}{d x} [\frac{x}{6}]$

Step 10

Since $\frac{1}{6}$ is constant with respect to $x$ , the derivative of $\frac{x}{6}$ with respect to $x$ is $\frac{1}{6} \frac{d}{d x} [x]$ .

$- \frac{25 \cot (\frac{x}{6}) \csc^{2} (\frac{x}{6})}{18} (\frac{1}{6} \frac{d}{d x} [x])$

Step 11

Combine fractions.

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Step 11.1

Multiply $\frac{1}{6}$ by $\frac{25 \cot (\frac{x}{6}) \csc^{2} (\frac{x}{6})}{18}$ .

$- \frac{25 \cot (\frac{x}{6}) \csc^{2} (\frac{x}{6})}{6 \cdot 18} \frac{d}{d x} [x]$

Step 11.2

Multiply $6$ by $18$ .

$- \frac{25 \cot (\frac{x}{6}) \csc^{2} (\frac{x}{6})}{108} \frac{d}{d x} [x]$

Step 12

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 1$ .

$- \frac{25 \cot (\frac{x}{6}) \csc^{2} (\frac{x}{6})}{108} \cdot 1$

Step 13

Multiply $- 1$ by $1$ .

$- \frac{25 \cot (\frac{x}{6}) \csc^{2} (\frac{x}{6})}{108}$