Trigonometry Examples

$\sqrt{\frac{- 36}{49}}$

Step 1

Move the negative in front of the fraction.

$\sqrt{- \frac{36}{49}}$

Step 2

Rewrite $- \frac{36}{49}$ as ${(\frac{6 i}{7})}^{2}$ .

$\sqrt{{(\frac{6 i}{7})}^{2}}$

Step 3

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

$\frac{6 i}{7}$