asin(x + 1)
1 ----------------- ______________ / 2 \/ 1 - (x + 1)
1 + x ----------------- 3/2 / 2\ \1 - (1 + x) /
2 3*(1 + x) 1 + ------------ 2 1 - (1 + x) ----------------- 3/2 / 2\ \1 - (1 + x) /