/ ___\ asin\\/ x /
asin(sqrt(x))
1 ----------------- ___ _______ 2*\/ x *\/ 1 - x
1 1 ----- - - 1 - x x ----------------- ___ _______ 4*\/ x *\/ 1 - x
3 3 2 -- + -------- - --------- 2 2 x*(1 - x) x (1 - x) ------------------------- ___ _______ 8*\/ x *\/ 1 - x