Precalculus Examples

$\frac{\tan (35) + \tan (25)}{1 - \tan (35) \tan (25)}$

Step 1

The unit circle can be used to find the values for exact angles.

Not an exact value

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