Trigonometri Contoh

$\cos (14) \cos (31) - \sin (14) \sin (31)$

Langkah 1

$\cos (14) \cos (31) - \sin (14) \sin (31)$

Langkah 2

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