Trigonometry Examples

$2 \cos (2 x) - 2 \cos (x) = 0$

Step 1

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

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

Step 2

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