acos(x) ------- x
acos(x)/x
1 acos(x)
- ------------- - -------
________ 2
/ 2 x
x*\/ 1 - x
1 2*acos(x) 2
- ----------- + --------- + --------------
3/2 3 ________
/ 2\ x 2 / 2
\1 - x / x *\/ 1 - x
2
3*x
-1 + -------
2
3 -1 + x 6*acos(x) 6
----------- + ------------ - --------- - --------------
3/2 3/2 3 ________
/ 2\ / 2\ x 2 / 2
\1 - x / \1 - x / x *\/ 1 - x
-------------------------------------------------------
x