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