Precalculus Examples

$y = \sqrt{- 3}$

Step 1

Rewrite $- 3$ as $- 1 (3)$ .

$y = \sqrt{- 1 (3)}$

Step 2

Rewrite $\sqrt{- 1 (3)}$ as $\sqrt{- 1} \cdot \sqrt{3}$ .

$y = \sqrt{- 1} \cdot \sqrt{3}$

Step 3

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

$y = i \sqrt{3}$