Trigonometri Contoh

$\cos (15) = \frac{\sqrt{2} + \sqrt{6}}{3}$

Langkah 1

Grafik.

$\cos (15) = \frac{\sqrt{2} + \sqrt{6}}{3}$

Langkah 2

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