Trigonometry Examples

$\sin (2 A) - 2 \sin (A)$

Step 1

Apply the sine double-angle identity.

$2 \sin (A) \cos (A) - 2 \sin (A)$

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