Simplify square root of -19

$\sqrt{- 19}$

Step 1

Rewrite $- 19$ as $- 1 (19)$ .

$\sqrt{- 1 (19)}$

Step 2

Rewrite $\sqrt{- 1 (19)}$ as $\sqrt{- 1} \cdot \sqrt{19}$ .

$\sqrt{- 1} \cdot \sqrt{19}$

Step 3

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

$i \sqrt{19}$