Trigonometry Examples

$| \cos (2 x) | = \frac{1}{2}$

Step 1

Graph each side of the equation. The solution is the x-value of the point of intersection.

$x = \frac{π}{6} + \frac{π n}{2}, \frac{π}{3} + \frac{π n}{2}$ , for any integer $n$

Step 2