2 -- - cos(x) + 4*acos(x) 2 x
2/x^2 - cos(x) + 4*acos(x)
4 4 - -- - ----------- + sin(x) 3 ________ x / 2 \/ 1 - x
12 4*x -- - ----------- + cos(x) 4 3/2 x / 2\ \1 - x /
/ 2 \ | 4 48 12*x | -|----------- + -- + ----------- + sin(x)| | 3/2 5 5/2 | |/ 2\ x / 2\ | \\1 - x / \1 - x / /