/ 1 2*x*acos(2*x)\ -8*|--------- + -------------| | 2 3/2| |-1 + 4*x / 2\ | \ \1 - 4*x / /
/ 2 \ | acos(2*x) 6*x 12*x *acos(2*x)| 16*|- ------------- + ------------ - ---------------| | 3/2 2 5/2 | | / 2\ / 2\ / 2\ | \ \1 - 4*x / \-1 + 4*x / \1 - 4*x / /