Precalculus Examples

$\tan (a - b)$

Step 1

Apply the difference of angles identity.

$\frac{\tan (a) - \tan (b)}{1 + \tan (a) \tan (b)}$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$