/ / / 2 \\ / 2 \ \
| | 2 | 4*x || 2 / x \ 2 | 4*x | |
| | x *|-1 + -------|| 3*x *|-2*atanh(x) + -------| x *|-1 + -------|*atanh(x)|
| | 2 | 2|| 3 | 2| | 2| |
| | 6*x \ -1 + x /| 6*x 3*x \ -1 + x / \ -1 + x / |
-2*|3*atanh(x) + |3 - ------- + -----------------|*acoth(x) - ------- + ---------- + ---------------------------- + --------------------------|
| | 2 2 | 2 2 2 2 |
| \ -1 + x -1 + x / -1 + x / 2\ -1 + x -1 + x |
\ \-1 + x / /
-----------------------------------------------------------------------------------------------------------------------------------------------
2
-1 + x