Trigonometry Examples

$- \sqrt{15^{2} + 8^{2}}$

Step 1

Raise $15$ to the power of $2$ .

$- \sqrt{225 + 8^{2}}$

Step 2

Raise $8$ to the power of $2$ .

$- \sqrt{225 + 64}$

Step 3

Add $225$ and $64$ .

$- \sqrt{289}$

Step 4

Rewrite $289$ as $17^{2}$ .

$- \sqrt{17^{2}}$

Step 5

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

$- 1 \cdot 17$

Step 6

Multiply $- 1$ by $17$ .

$- 17$