Trigonometry Examples

$\cos (3 x) - \cos (5 x) = 0$

Step 1

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

$x = \frac{π n}{4}$ , for any integer $n$

Step 2

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