Trigonometry Examples

$\sin^{4} (x) + \cos^{4} (x) = 1 - 2 \sin^{2} (x) \cos^{2} (x)$

Step 1

The provided equation is an identity.

$\sin^{4} (x) + \cos^{4} (x) = 1 - 2 \sin^{2} (x) \cos^{2} (x)$ is an identity