/ 4 \ | 1 9 2*x 54*x*atan(3*x)| 2*|- ----------- + ----------- - ----------- - --------------| | ________ 2 3/2 2 | | / 4 / 2\ / 4\ / 2\ | \ \/ 1 - x \1 + 9*x / \1 - x / \1 + 9*x / /
/ 7 3 2 \ | 243*x 27*atan(3*x) 6*x 5*x 972*x *atan(3*x)| 4*|- ----------- - ------------ - ----------- - ----------- + ----------------| | 3 2 5/2 3/2 3 | | / 2\ / 2\ / 4\ / 4\ / 2\ | \ \1 + 9*x / \1 + 9*x / \1 - x / \1 - x / \1 + 9*x / /