Trigonometry Examples

$\frac{\tan (2 x) - \tan (7 x)}{1 + \tan (2 x) \tan (7 x)} = 1$

Step 1

The provided equation is not an identity.

$\frac{\tan (2 x) - \tan (7 x)}{1 + \tan (2 x) \tan (7 x)} = 1$ is not an identity