Precalculus Examples

$\sin (x) \cos (\frac{π}{7}) - \sin (\frac{π}{7}) \cos (x) = \frac{\sqrt{2}}{2}$

Step 1

The provided equation is not an identity.

$\sin (x) \cos (\frac{π}{7}) - \sin (\frac{π}{7}) \cos (x) = \frac{\sqrt{2}}{2}$ is not an identity