/ x \ \E - 3/*acot(x)
(E^x - 3)*acot(x)
x x E - 3 acot(x)*e - ------ 2 1 + x
x / x\ x 2*e 2*x*\-3 + e / acot(x)*e - ------ + ------------- 2 2 1 + x / 2\ \1 + x /
/ 2 \ | 4*x | / x\ 2*|-1 + ------|*\-3 + e / x | 2| x x 3*e \ 1 + x / 6*x*e acot(x)*e - ------ - ------------------------- + --------- 2 2 2 1 + x / 2\ / 2\ \1 + x / \1 + x /