Trigonometri Contoh

$\sin (3 a) - \sin (5 a)$

Langkah 1

Terapkan identitas sudut tiga sinus.

$- 4 \sin^{3} (a) + 3 \sin (a) - \sin (5 a)$

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