Solve for x cos(x)^2=sin(x/2)^2

$\cos^{2} (x) = \sin^{2} (\frac{x}{2})$

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

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