Trigonometry Examples

$\cot (A + b) = \frac{\cot (a) \cot (B) - 1}{\cot (A) + \cot (B)}$

Step 1

The provided equation is not an identity.

$\cot (A + b) = \frac{\cot (a) \cot (B) - 1}{\cot (A) + \cot (B)}$ is not an identity