3 acot (x) / 3 \ 3*3 *\2 + 2*x*acot(x) + 3*acot (x)*log(3)/*acot(x)*log(3) ---------------------------------------------------------------- 2 / 2\ \1 + x /
3 / 3 6 2 2 2 4 \ acot (x) | 2 2 18*acot (x)*log(3) 12*x*acot(x) 9*acot (x)*log (3) 8*x *acot (x) 18*x*acot (x)*log(3)| 3*3 *|- ------ + 2*acot (x) - ------------------ - ------------ - ------------------ - ------------- - --------------------|*log(3) | 2 2 2 2 2 2 | \ 1 + x 1 + x 1 + x 1 + x 1 + x 1 + x / ------------------------------------------------------------------------------------------------------------------------------------------ 2 / 2\ \1 + x /