acot(x) ------- 2 x
acot(x)/x^2
1 2*acot(x) - ----------- - --------- 2 / 2\ 3 x *\1 + x / x
/ 1 2 3*acot(x)\ 2*|--------- + ----------- + ---------| | 2 2 / 2\ 3 | |/ 2\ x *\1 + x / x | \\1 + x / / --------------------------------------- x
/ 2 \ | 4*x | | -1 + ------ | | 2 | | 6 1 + x 9 12*acot(x)| -2*|--------- + ----------- + ----------- + ----------| | 2 2 2 / 2\ 3 | |/ 2\ / 2\ x *\1 + x / x | \\1 + x / \1 + x / / ------------------------------------------------------- 2 x