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