-10*acos(5*x) -------------- ___________ / 2 \/ 1 - 25*x
/ 1 5*x*acos(5*x) \
-50*|---------- + --------------|
| 2 3/2|
|-1 + 25*x / 2\ |
\ \1 - 25*x / / / 2 \
| acos(5*x) 15*x 75*x *acos(5*x)|
250*|- -------------- + ------------- - ---------------|
| 3/2 2 5/2|
| / 2\ / 2\ / 2\ |
\ \1 - 25*x / \-1 + 25*x / \1 - 25*x / /