Trigonometry Examples

$\cos (x) = - \frac{2}{3}$

Step 1

Graph each side of the equation.

$y = \cos (x)$

$y = - \frac{2}{3}$

Step 2

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