3 x 12*x - 2*E + acot(x)
12*x^3 - 2*exp(x) + acot(x)
1 x 2 - ------ - 2*e + 36*x 2 1 + x
/ x x \ 2*|- e + 36*x + ---------| | 2| | / 2\ | \ \1 + x / /
/ 2 \ | 1 x 4*x | 2*|36 + --------- - e - ---------| | 2 3| | / 2\ / 2\ | \ \1 + x / \1 + x / /