Trigonometry Examples

$2 \sqrt{25 - 16}$

Step 1

Subtract $16$ from $25$ .

$2 \sqrt{9}$

Step 2

Rewrite $9$ as $3^{2}$ .

$2 \sqrt{3^{2}}$

Step 3

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

$2 \cdot 3$

Step 4

Multiply $2$ by $3$ .

$6$