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