Trigonometry Examples

$\sqrt{1 - 3}$

Step 1

Subtract $3$ from $1$ .

$\sqrt{- 2}$

Step 2

Rewrite $- 2$ as $- 1 (2)$ .

$\sqrt{- 1 (2)}$

Step 3

Rewrite $\sqrt{- 1 (2)}$ as $\sqrt{- 1} \cdot \sqrt{2}$ .

$\sqrt{- 1} \cdot \sqrt{2}$

Step 4

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

$i \sqrt{2}$