Trigonometri Contoh

$\frac{1 - \sin (x)}{1 + \sin (x)} = {(\sec (x) - \tan (x))}^{2}$

Langkah 1

Kurangkan ${(\sec (x) - \tan (x))}^{2}$ dari kedua sisi persamaan tersebut.

$\frac{1 - \sin (x)}{1 + \sin (x)} - {(\sec (x) - \tan (x))}^{2} = 0$

Langkah 2

Sederhanakan $\frac{1 - \sin (x)}{1 + \sin (x)} - {(\sec (x) - \tan (x))}^{2}$ .

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Langkah 2.1

Sederhanakan setiap suku.

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Langkah 2.1.1

Sederhanakan setiap suku.

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Langkah 2.1.1.1

Tulis kembali $\sec (x)$ dalam bentuk sinus dan kosinus.

$\frac{1 - \sin (x)}{1 + \sin (x)} - {(\frac{1}{\cos (x)} - \tan (x))}^{2} = 0$

Langkah 2.1.1.2

Tulis kembali $\tan (x)$ dalam bentuk sinus dan kosinus.

$\frac{1 - \sin (x)}{1 + \sin (x)} - {(\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)})}^{2} = 0$

Langkah 2.1.2

Tulis kembali ${(\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)})}^{2}$ sebagai $(\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)}) (\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)})$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - ((\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)}) (\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.3

Perluas $(\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)}) (\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)})$ menggunakan Metode FOIL.

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Langkah 2.1.3.1

Terapkan sifat distributif.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos (x)} (\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)}) - \frac{\sin (x)}{\cos (x)} (\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.3.2

Terapkan sifat distributif.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos (x)} \cdot \frac{1}{\cos (x)} + \frac{1}{\cos (x)} (- \frac{\sin (x)}{\cos (x)}) - \frac{\sin (x)}{\cos (x)} (\frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.3.3

Terapkan sifat distributif.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos (x)} \cdot \frac{1}{\cos (x)} + \frac{1}{\cos (x)} (- \frac{\sin (x)}{\cos (x)}) - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4

Sederhanakan dan gabungkan suku-suku sejenis.

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Langkah 2.1.4.1

Sederhanakan setiap suku.

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Langkah 2.1.4.1.1

Kalikan $\frac{1}{\cos (x)} \cdot \frac{1}{\cos (x)}$ .

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Langkah 2.1.4.1.1.1

Kalikan $\frac{1}{\cos (x)}$ dengan $\frac{1}{\cos (x)}$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos (x) \cos (x)} + \frac{1}{\cos (x)} (- \frac{\sin (x)}{\cos (x)}) - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.1.2

Naikkan $\cos (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{1} (x) \cos (x)} + \frac{1}{\cos (x)} (- \frac{\sin (x)}{\cos (x)}) - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.1.3

Naikkan $\cos (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{1} (x) \cos^{1} (x)} + \frac{1}{\cos (x)} (- \frac{\sin (x)}{\cos (x)}) - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.1.4

Gunakan kaidah pangkat $a^{m} a^{n} = a^{m + n}$ untuk menggabungkan pangkat.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{{\cos (x)}^{1 + 1}} + \frac{1}{\cos (x)} (- \frac{\sin (x)}{\cos (x)}) - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.1.5

Tambahkan $1$ dan $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} + \frac{1}{\cos (x)} (- \frac{\sin (x)}{\cos (x)}) - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.2

Tulis kembali menggunakan sifat komutatif dari perkalian.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{1}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.3

Kalikan $- \frac{1}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)}$ .

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Langkah 2.1.4.1.3.1

Kalikan $\frac{\sin (x)}{\cos (x)}$ dengan $\frac{1}{\cos (x)}$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos (x) \cos (x)} - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.3.2

Naikkan $\cos (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{1} (x) \cos (x)} - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.3.3

Naikkan $\cos (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{1} (x) \cos^{1} (x)} - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.3.4

Gunakan kaidah pangkat $a^{m} a^{n} = a^{m + n}$ untuk menggabungkan pangkat.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{{\cos (x)}^{1 + 1}} - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.3.5

Tambahkan $1$ dan $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.4

Kalikan $- \frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\cos (x)}$ .

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Langkah 2.1.4.1.4.1

Kalikan $\frac{1}{\cos (x)}$ dengan $\frac{\sin (x)}{\cos (x)}$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos (x) \cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.4.2

Naikkan $\cos (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{1} (x) \cos (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.4.3

Naikkan $\cos (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{1} (x) \cos^{1} (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.4.4

Gunakan kaidah pangkat $a^{m} a^{n} = a^{m + n}$ untuk menggabungkan pangkat.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{{\cos (x)}^{1 + 1}} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.4.5

Tambahkan $1$ dan $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})) = 0$

Langkah 2.1.4.1.5

Kalikan $- \frac{\sin (x)}{\cos (x)} (- \frac{\sin (x)}{\cos (x)})$ .

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Langkah 2.1.4.1.5.1

Kalikan $- 1$ dengan $- 1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + 1 \frac{\sin (x)}{\cos (x)} \frac{\sin (x)}{\cos (x)}) = 0$

Langkah 2.1.4.1.5.2

Kalikan $\frac{\sin (x)}{\cos (x)}$ dengan $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)}) = 0$

Langkah 2.1.4.1.5.3

Kalikan $\frac{\sin (x)}{\cos (x)}$ dengan $\frac{\sin (x)}{\cos (x)}$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin (x) \sin (x)}{\cos (x) \cos (x)}) = 0$

Langkah 2.1.4.1.5.4

Naikkan $\sin (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin^{1} (x) \sin (x)}{\cos (x) \cos (x)}) = 0$

Langkah 2.1.4.1.5.5

Naikkan $\sin (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin^{1} (x) \sin^{1} (x)}{\cos (x) \cos (x)}) = 0$

Langkah 2.1.4.1.5.6

Gunakan kaidah pangkat $a^{m} a^{n} = a^{m + n}$ untuk menggabungkan pangkat.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{{\sin (x)}^{1 + 1}}{\cos (x) \cos (x)}) = 0$

Langkah 2.1.4.1.5.7

Tambahkan $1$ dan $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin^{2} (x)}{\cos (x) \cos (x)}) = 0$

Langkah 2.1.4.1.5.8

Naikkan $\cos (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin^{2} (x)}{\cos^{1} (x) \cos (x)}) = 0$

Langkah 2.1.4.1.5.9

Naikkan $\cos (x)$ menjadi pangkat $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin^{2} (x)}{\cos^{1} (x) \cos^{1} (x)}) = 0$

Langkah 2.1.4.1.5.10

Gunakan kaidah pangkat $a^{m} a^{n} = a^{m + n}$ untuk menggabungkan pangkat.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin^{2} (x)}{{\cos (x)}^{1 + 1}}) = 0$

Langkah 2.1.4.1.5.11

Tambahkan $1$ dan $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} - \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)}) = 0$

Langkah 2.1.4.2

Kurangi $\frac{\sin (x)}{\cos^{2} (x)}$ dengan $- \frac{\sin (x)}{\cos^{2} (x)}$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - 2 \frac{\sin (x)}{\cos^{2} (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)}) = 0$

Langkah 2.1.5

Sederhanakan setiap suku.

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Langkah 2.1.5.1

Gabungkan $- 2$ dan $\frac{\sin (x)}{\cos^{2} (x)}$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} + \frac{- 2 \sin (x)}{\cos^{2} (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)}) = 0$

Langkah 2.1.5.2

Pindahkan tanda negatif di depan pecahan.

$\frac{1 - \sin (x)}{1 + \sin (x)} - (\frac{1}{\cos^{2} (x)} - \frac{2 \sin (x)}{\cos^{2} (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)}) = 0$

Langkah 2.1.6

Terapkan sifat distributif.

$\frac{1 - \sin (x)}{1 + \sin (x)} - \frac{1}{\cos^{2} (x)} - - \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.1.7

Kalikan $- - \frac{2 \sin (x)}{\cos^{2} (x)}$ .

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Langkah 2.1.7.1

Kalikan $- 1$ dengan $- 1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - \frac{1}{\cos^{2} (x)} + 1 \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.1.7.2

Kalikan $\frac{2 \sin (x)}{\cos^{2} (x)}$ dengan $1$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} - \frac{1}{\cos^{2} (x)} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.2

Untuk menuliskan $\frac{1 - \sin (x)}{1 + \sin (x)}$ sebagai pecahan dengan penyebut umum, kalikan dengan $\frac{\cos^{2} (x)}{\cos^{2} (x)}$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} \cdot \frac{\cos^{2} (x)}{\cos^{2} (x)} - \frac{1}{\cos^{2} (x)} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.3

Untuk menuliskan $- \frac{1}{\cos^{2} (x)}$ sebagai pecahan dengan penyebut umum, kalikan dengan $\frac{1 + \sin (x)}{1 + \sin (x)}$ .

$\frac{1 - \sin (x)}{1 + \sin (x)} \cdot \frac{\cos^{2} (x)}{\cos^{2} (x)} - \frac{1}{\cos^{2} (x)} \cdot \frac{1 + \sin (x)}{1 + \sin (x)} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.4

Tulis setiap pernyataan menggunakan penyebut umum dari $(1 + \sin (x)) \cos^{2} (x)$ , dengan mengalikan masing-masing pembilang dan penyebut dengan faktor dari $1$ yang sesuai.

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Langkah 2.4.1

Kalikan $\frac{1 - \sin (x)}{1 + \sin (x)}$ dengan $\frac{\cos^{2} (x)}{\cos^{2} (x)}$ .

$\frac{(1 - \sin (x)) \cos^{2} (x)}{(1 + \sin (x)) \cos^{2} (x)} - \frac{1}{\cos^{2} (x)} \cdot \frac{1 + \sin (x)}{1 + \sin (x)} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.4.2

Kalikan $\frac{1}{\cos^{2} (x)}$ dengan $\frac{1 + \sin (x)}{1 + \sin (x)}$ .

$\frac{(1 - \sin (x)) \cos^{2} (x)}{(1 + \sin (x)) \cos^{2} (x)} - \frac{1 + \sin (x)}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.4.3

Susun kembali faktor-faktor dari $(1 + \sin (x)) \cos^{2} (x)$ .

$\frac{(1 - \sin (x)) \cos^{2} (x)}{\cos^{2} (x) (1 + \sin (x))} - \frac{1 + \sin (x)}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.5

Gabungkan pembilang dari penyebut persekutuan.

$\frac{(1 - \sin (x)) \cos^{2} (x) - (1 + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6

Sederhanakan setiap suku.

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Langkah 2.6.1

Sederhanakan pembilangnya.

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Langkah 2.6.1.1

Terapkan sifat distributif.

$\frac{1 \cos^{2} (x) - \sin (x) \cos^{2} (x) - (1 + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.2

Kalikan $\cos^{2} (x)$ dengan $1$ .

$\frac{\cos^{2} (x) - \sin (x) \cos^{2} (x) - (1 + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.3

Terapkan sifat distributif.

$\frac{\cos^{2} (x) - \sin (x) \cos^{2} (x) - 1 \cdot 1 - \sin (x)}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.4

Kalikan $- 1$ dengan $1$ .

$\frac{\cos^{2} (x) - \sin (x) \cos^{2} (x) - 1 - \sin (x)}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5

Tulis kembali $\cos^{2} (x) - \sin (x) \cos^{2} (x) - 1 - \sin (x)$ dalam bentuk faktor.

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Langkah 2.6.1.5.1

Kelompokkan kembali suku-suku.

$\frac{- \sin (x) + \cos^{2} (x) - \sin (x) \cos^{2} (x) - 1}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.2

Tambahkan tanda kurung.

$\frac{- \sin (x) + \cos^{2} (x) - (\sin (x) \cos^{2} (x)) - 1}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.3

Biarkan $u = \sin (x) \cos^{2} (x)$ . Masukkan $u$ untuk semua kejadian $\sin (x) \cos^{2} (x)$ .

$\frac{- \sin (x) - \sin^{2} (x) - u}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.4

Faktorkan $- 1$ dari $- \sin^{2} (x) - u$ .

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Langkah 2.6.1.5.4.1

Susun kembali $- \sin^{2} (x)$ dan $- u$ .

$\frac{- \sin (x) - u - \sin^{2} (x)}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.4.2

Faktorkan $- 1$ dari $- u$ .

$\frac{- \sin (x) - (u) - \sin^{2} (x)}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.4.3

Faktorkan $- 1$ dari $- \sin^{2} (x)$ .

$\frac{- \sin (x) - (u) - (\sin^{2} (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.4.4

Faktorkan $- 1$ dari $- (u) - (\sin^{2} (x))$ .

$\frac{- \sin (x) - (u + \sin^{2} (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.5

Ganti semua kemunculan $u$ dengan $\sin (x) \cos^{2} (x)$ .

$\frac{- \sin (x) - (\sin (x) \cos^{2} (x) + \sin^{2} (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.6

Faktorkan $\sin (x)$ dari $\sin (x) \cos^{2} (x) + \sin^{2} (x)$ .

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Langkah 2.6.1.5.6.1

Faktorkan $\sin (x)$ dari $\sin (x) \cos^{2} (x)$ .

$\frac{- \sin (x) - (\sin (x) (\cos^{2} (x)) + \sin^{2} (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.6.2

Faktorkan $\sin (x)$ dari $\sin^{2} (x)$ .

$\frac{- \sin (x) - (\sin (x) (\cos^{2} (x)) + \sin (x) \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.6.3

Faktorkan $\sin (x)$ dari $\sin (x) (\cos^{2} (x)) + \sin (x) \sin (x)$ .

$\frac{- \sin (x) - (\sin (x) (\cos^{2} (x) + \sin (x)))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

$\frac{- \sin (x) - \sin (x) (\cos^{2} (x) + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.7

Faktorkan $- \sin (x)$ dari $- \sin (x) - \sin (x) (\cos^{2} (x) + \sin (x))$ .

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Langkah 2.6.1.5.7.1

Faktorkan $- \sin (x)$ dari $- \sin (x)$ .

$\frac{- \sin (x) (1) - \sin (x) (\cos^{2} (x) + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.1.5.7.2

Faktorkan $- \sin (x)$ dari $- \sin (x) (1) - \sin (x) (\cos^{2} (x) + \sin (x))$ .

$\frac{- \sin (x) (1 + \cos^{2} (x) + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.6.2

Pindahkan tanda negatif di depan pecahan.

$- \frac{\sin (x) (1 + \cos^{2} (x) + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.7

Untuk menuliskan $\frac{2 \sin (x)}{\cos^{2} (x)}$ sebagai pecahan dengan penyebut umum, kalikan dengan $\frac{1 + \sin (x)}{1 + \sin (x)}$ .

$- \frac{\sin (x) (1 + \cos^{2} (x) + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x)}{\cos^{2} (x)} \cdot \frac{1 + \sin (x)}{1 + \sin (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.8

Kalikan $\frac{2 \sin (x)}{\cos^{2} (x)}$ dengan $\frac{1 + \sin (x)}{1 + \sin (x)}$ .

$- \frac{\sin (x) (1 + \cos^{2} (x) + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} + \frac{2 \sin (x) (1 + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.9

Gabungkan pembilang dari penyebut persekutuan.

$\frac{- \sin (x) (1 + \cos^{2} (x) + \sin (x)) + 2 \sin (x) (1 + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10

Sederhanakan setiap suku.

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Langkah 2.10.1

Sederhanakan pembilangnya.

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Langkah 2.10.1.1

Faktorkan $\sin (x)$ dari $- \sin (x) (1 + \cos^{2} (x) + \sin (x)) + 2 \sin (x) (1 + \sin (x))$ .

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Langkah 2.10.1.1.1

Faktorkan $\sin (x)$ dari $- \sin (x) (1 + \cos^{2} (x) + \sin (x))$ .

$\frac{\sin (x) (- 1 (1 + \cos^{2} (x) + \sin (x))) + 2 \sin (x) (1 + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.1.2

Faktorkan $\sin (x)$ dari $2 \sin (x) (1 + \sin (x))$ .

$\frac{\sin (x) (- 1 (1 + \cos^{2} (x) + \sin (x))) + \sin (x) (2 (1 + \sin (x)))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.1.3

Faktorkan $\sin (x)$ dari $\sin (x) (- 1 (1 + \cos^{2} (x) + \sin (x))) + \sin (x) (2 (1 + \sin (x)))$ .

$\frac{\sin (x) (- 1 (1 + \cos^{2} (x) + \sin (x)) + 2 (1 + \sin (x)))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.2

Terapkan sifat distributif.

$\frac{\sin (x) (- 1 \cdot 1 - 1 \cos^{2} (x) - 1 \sin (x) + 2 (1 + \sin (x)))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.3

Sederhanakan.

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Langkah 2.10.1.3.1

Kalikan $- 1$ dengan $1$ .

$\frac{\sin (x) (- 1 - 1 \cos^{2} (x) - 1 \sin (x) + 2 (1 + \sin (x)))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.3.2

Tulis kembali $- 1 \cos^{2} (x)$ sebagai $- \cos^{2} (x)$ .

$\frac{\sin (x) (- 1 - \cos^{2} (x) - 1 \sin (x) + 2 (1 + \sin (x)))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.3.3

Tulis kembali $- 1 \sin (x)$ sebagai $- \sin (x)$ .

$\frac{\sin (x) (- 1 - \cos^{2} (x) - \sin (x) + 2 (1 + \sin (x)))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.4

Terapkan sifat distributif.

$\frac{\sin (x) (- 1 - \cos^{2} (x) - \sin (x) + 2 \cdot 1 + 2 \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.5

Kalikan $2$ dengan $1$ .

$\frac{\sin (x) (- 1 - \cos^{2} (x) - \sin (x) + 2 + 2 \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.6

Tambahkan $- 1$ dan $2$ .

$\frac{\sin (x) (1 - \cos^{2} (x) - \sin (x) + 2 \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.7

Tambahkan $- \sin (x)$ dan $2 \sin (x)$ .

$\frac{\sin (x) (1 - \cos^{2} (x) + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.8

Terapkan identitas pythagoras.

$\frac{\sin (x) (\sin^{2} (x) + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.9

Faktorkan $\sin (x)$ dari $\sin^{2} (x) + \sin (x)$ .

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Langkah 2.10.1.9.1

Faktorkan $\sin (x)$ dari $\sin^{2} (x)$ .

$\frac{\sin (x) (\sin (x) \sin (x) + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.9.2

Kalikan dengan $1$ .

$\frac{\sin (x) (\sin (x) \sin (x) + \sin (x) \cdot 1)}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.9.3

Faktorkan $\sin (x)$ dari $\sin (x) \sin (x) + \sin (x) \cdot 1$ .

$\frac{\sin (x) (\sin (x) (\sin (x) + 1))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

$\frac{\sin (x) \sin (x) (\sin (x) + 1)}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.10

Gabungkan eksponen.

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Langkah 2.10.1.10.1

Naikkan $\sin (x)$ menjadi pangkat $1$ .

$\frac{\sin^{1} (x) \sin (x) (\sin (x) + 1)}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.10.2

Naikkan $\sin (x)$ menjadi pangkat $1$ .

$\frac{\sin^{1} (x) \sin^{1} (x) (\sin (x) + 1)}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.10.3

Gunakan kaidah pangkat $a^{m} a^{n} = a^{m + n}$ untuk menggabungkan pangkat.

$\frac{{\sin (x)}^{1 + 1} (\sin (x) + 1)}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.1.10.4

Tambahkan $1$ dan $1$ .

$\frac{\sin^{2} (x) (\sin (x) + 1)}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.2

Hapus faktor persekutuan dari $\sin (x) + 1$ dan $1 + \sin (x)$ .

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Langkah 2.10.2.1

Susun kembali suku-suku.

$\frac{\sin^{2} (x) (1 + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.2.2

Batalkan faktor persekutuan.

$\frac{\sin^{2} (x) (1 + \sin (x))}{\cos^{2} (x) (1 + \sin (x))} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.10.2.3

Tulis kembali pernyataannya.

$\frac{\sin^{2} (x)}{\cos^{2} (x)} - \frac{\sin^{2} (x)}{\cos^{2} (x)} = 0$

Langkah 2.11

Kurangi $\frac{\sin^{2} (x)}{\cos^{2} (x)}$ dengan $\frac{\sin^{2} (x)}{\cos^{2} (x)}$ .

$0 = 0$

Langkah 3

Domain dari pernyataan adalah semua bilangan riil, kecuali di mana pernyataannya tidak terdefinisi. Dalam hal ini, tidak ada bilangan riil yang membuat pernyataannya tidak terdefinisi.