Precalculus Examples

$\sqrt{169}$

Step 1

Rewrite $169$ as $13^{2}$ .

$\sqrt{13^{2}}$

Step 2

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

$13$

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