Int frac 1 sqrt x 2 1 dx July 8, 2019 16 32 64 128 Int frac 1 x 3 sqrt x 2 1 dx Int frac 1 sqrt 4 x 2 dx Int frac 1 sqrt 9 x 2 dx Int _ 0 1 frac 1 sqrt 1 x 2 dx Int frac x sin - 1 x sqrt 1 x 2 dx Displaystyle pi = int _ - 1 1 frac dx sqrt 1 x 2 Integral of 1/sqrt(2x-x^2)