Question
If the sum $1 + \sin x + \sin^2 x + \ldots$ up to infinity equals $4 + 2\sqrt{3}$, and $x \neq \frac{\pi}{2}$, then $x =$
If the sum $1 + \sin x + \sin^2 x + \ldots$ up to infinity equals $4 + 2\sqrt{3}$, and $x \neq \frac{\pi}{2}$, then $x =$