Precalculus Examples

\sqrt{16}

$\sqrt{16}$

Step 1

Rewrite

16

$16$ as

4^{2}

$4^{2}$ .

\sqrt{4^{2}}

$\sqrt{4^{2}}$

Step 2

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

4

$4$

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⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

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