Trigonometry Examples

$\frac{\sin (2 x)}{\sin (x)} - \frac{\cos (2 x)}{\cos (x)} = \sec (x)$

Step 1

The provided equation is an identity.

$\frac{\sin (2 x)}{\sin (x)} - \frac{\cos (2 x)}{\cos (x)} = \sec (x)$ is an identity