Trigonometry Examples

$- \sqrt{- \frac{100}{361}}$

Step 1

Rewrite $- \frac{100}{361}$ as ${(\frac{10 i}{19})}^{2}$ .

$- \sqrt{{(\frac{10 i}{19})}^{2}}$

Step 2

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

$- \frac{10 i}{19}$