/ 2\ asin\x /
asin(x^2)
2*x ----------- ________ / 4 \/ 1 - x
/ 4 \ | 2*x | 2*|1 + ------| | 4| \ 1 - x / -------------- ________ / 4 \/ 1 - x
/ 4 \ 3 | 6*x | 4*x *|5 + ------| | 4| \ 1 - x / ----------------- 3/2 / 4\ \1 - x /