acos(2*x) --------- x E
acos(2*x)/E^x
-x -x 2*e - acos(2*x)*e - ------------- __________ / 2 \/ 1 - 4*x
/ 4 8*x \ -x |------------- - ------------- + acos(2*x)|*e | __________ 3/2 | | / 2 / 2\ | \\/ 1 - 4*x \1 - 4*x / /
/ / 2 \ \ | | 12*x | | | 8*|-1 + ---------| | | | 2| | | 6 \ -1 + 4*x / 24*x | -x |-acos(2*x) - ------------- + ------------------ + -------------|*e | __________ 3/2 3/2| | / 2 / 2\ / 2\ | \ \/ 1 - 4*x \1 - 4*x / \1 - 4*x / /