/ / 2 \ \
| 3 | 3*x 4*x *acot(x)| |
| tan (x)*|-acot(x) + ------ + ------------| |
| | 2 2 | / 2 \ 2 / 2 \ / 2 \ / 2 \ |
| \ 1 + x 1 + x / 2 / 2 \ | 4 / 2 \ 2 / 2 \| 6*tan (x)*\1 + tan (x)/*(1 + 2*x*acot(x)) 6*\1 + tan (x)/*\3 + 5*tan (x)/*acot(x)*tan(x)|
4*|- ------------------------------------------ + 2*acot (x)*\1 + tan (x)/*\2*tan (x) + 3*\1 + tan (x)/ + 10*tan (x)*\1 + tan (x)// + ----------------------------------------- - ----------------------------------------------|*tan(x)
| 2 2 2 |
| / 2\ / 2\ 1 + x |
\ \1 + x / \1 + x / /