/ 4 \ acot(x)*\2*x - 5/
acot(x)*(2*x^4 - 5)
4 2*x - 5 3 - -------- + 8*x *acot(x) 2 1 + x
/ 4 2 \ |-5 + 2*x 8*x | 2*x*|--------- - ------ + 12*x*acot(x)| | 2 2 | |/ 2\ 1 + x | \\1 + x / /
/ / 2 \ \ | | 4*x | / 4\| | |-1 + ------|*\-5 + 2*x /| | 2 4 | 2| | | 36*x 24*x \ 1 + x / | 2*|- ------ + 24*x*acot(x) + --------- - -------------------------| | 2 2 2 | | 1 + x / 2\ / 2\ | \ \1 + x / \1 + x / /