Trigonometry Examples

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

Step 1

Graph each side of the equation.

$y = \cos (\frac{x}{2})$

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

Step 2

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