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