Trigonometri Contoh

$\frac{\cos (6 a) + \cos (2 a)}{2 \sin (4 a) \cdot \cos (2 a)}$

Langkah 1

Kalikan $2 \sin (4 a)$ dengan $\cos (2 a)$ .

$\frac{\cos (6 a) + \cos (2 a)}{2 \sin (4 a) \cos (2 a)}$

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