Trigonometry Examples

$1 - 2 \sin^{2} (x) - 3 \sin (x - 2)$

Step 1

Apply the cosine double-angle identity.

$\cos (2 x) - 3 \sin (x - 2)$

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