_______
/ 1 - x / 1 1 - x \
-4* / ----- *(1 + x)*|- --------- - ----------|
\/ 1 + x | 2*(1 + x) 2|
\ 2*(1 + x) /
-------------------------------------------------
/ 1 - x\
(1 - x)*|1 + -----|
\ 1 + x/
$$- \frac{4 \sqrt{\frac{- x + 1}{x + 1}} \left(x + 1\right) \left(- \frac{- x + 1}{2 \left(x + 1\right)^{2}} - \frac{1}{2 \left(x + 1\right)}\right)}{\left(- x + 1\right) \left(\frac{- x + 1}{x + 1} + 1\right)}$$
____________
/ -(-1 + x) / -1 + x\
/ ---------- *|1 + ------|
\/ 1 + x \ 1 + x /
-----------------------------
2
(-1 + x)
$$\frac{\sqrt{- \frac{x - 1}{x + 1}} \left(\frac{x - 1}{x + 1} + 1\right)}{\left(x - 1\right)^{2}}$$
/ 2 \
| -1 + x / -1 + x\ / -1 + x\|
____________ | -1 + ------ |-1 + ------| 3*|-1 + ------||
/ -(-1 + x) | 1 1 + x \ 1 + x / \ 1 + x /|
-4* / ---------- *|------ + ----------- + -------------- + ---------------|
\/ 1 + x \-1 + x 4*(1 + x) 8*(-1 + x) 4*(-1 + x) /
-----------------------------------------------------------------------------
2
(-1 + x)
$$- \frac{4 \sqrt{- \frac{x - 1}{x + 1}} \left(\frac{\left(\frac{x - 1}{x + 1} - 1\right)^{2}}{8 \left(x - 1\right)} + \frac{\frac{x - 1}{x + 1} - 1}{4 \left(x + 1\right)} + \frac{3 \left(\frac{x - 1}{x + 1} - 1\right)}{4 \left(x - 1\right)} + \frac{1}{x - 1}\right)}{\left(x - 1\right)^{2}}$$