find-A-n-0-2pi-sin-2-x-sin-2-nx-2-dx-n-gt-0-

Question Number 65774 by mathmax by abdo last updated on 03/Aug/19

f i n d A_{n} = \int_{0}^{2 π} \frac{{s i n}^{2} x}{{s i n}^{2} (\frac{n x}{2})} d x (n > 0)