Trigonometri Contoh

$\cos (x) \cos (2 x) - \sin (x) \sin (2 x) = 0$

Langkah 1

Gambarkan masing-masing sisi persamaannya.

$y = \cos (x) \cos (2 x) - \sin (x) \sin (2 x)$

$y = 0$

Langkah 2

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$