Evaluate - square root of -11

$- \sqrt{- 11}$

Step 1

Rewrite $- 11$ as $- 1 (11)$ .

$- \sqrt{- 1 (11)}$

Step 2

Rewrite $\sqrt{- 1 (11)}$ as $\sqrt{- 1} \cdot \sqrt{11}$ .

$- (\sqrt{- 1} \cdot \sqrt{11})$

Step 3

Rewrite $\sqrt{- 1}$ as $i$ .

$- i \sqrt{11}$