Trigonometry Examples

$a = \arccos (\frac{- 20}{29})$

Step 1

Move the negative in front of the fraction.

$a = \arccos (- \frac{20}{29})$

Step 2

Evaluate $\arccos (- \frac{20}{29})$ .

$a = 2.33180908$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$