Precalculus Examples

$\sqrt{\sec^{2} (x) - 1}$

Step 1

Apply pythagorean identity.

$\sqrt{\tan^{2} (x)}$

Step 2

Pull terms out from under the radical, assuming positive real numbers.

$\tan (x)$

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