Trigonometry Examples

$9 \sqrt{4}$

Step 1

Rewrite $4$ as $2^{2}$ .

$9 \sqrt{2^{2}}$

Step 2

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

$9 \cdot 2$

Step 3

Multiply $9$ by $2$ .

$18$

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