/ 2 / ________\\
| 2 / x \ | / 2 ||
| x 2*|1 + -----------| *\x + \/ 1 + x /|
|-1 + ------ | ________| |
| 2 | / 2 | |
| 1 + x \ \/ 1 + x / |
-|----------- + --------------------------------------|
| ________ 2 |
| / 2 / ________\ |
|\/ 1 + x | / 2 | |
\ 1 + \x + \/ 1 + x / /
--------------------------------------------------------
2
/ ________\
| / 2 |
1 + \x + \/ 1 + x /
$$- \frac{\frac{2 \left(x + \sqrt{x^{2} + 1}\right) \left(\frac{x}{\sqrt{x^{2} + 1}} + 1\right)^{2}}{\left(x + \sqrt{x^{2} + 1}\right)^{2} + 1} + \frac{\frac{x^{2}}{x^{2} + 1} - 1}{\sqrt{x^{2} + 1}}}{\left(x + \sqrt{x^{2} + 1}\right)^{2} + 1}$$
2
3 3 / ________\ / 2 \ / ________\
/ x \ / 2 \ / x \ | / 2 | / x \ | x | | / 2 |
2*|1 + -----------| | x | 8*|1 + -----------| *\x + \/ 1 + x / 6*|1 + -----------|*|-1 + ------|*\x + \/ 1 + x /
| ________| 3*x*|-1 + ------| | ________| | ________| | 2|
| / 2 | | 2| | / 2 | | / 2 | \ 1 + x /
\ \/ 1 + x / \ 1 + x / \ \/ 1 + x / \ \/ 1 + x /
- ---------------------- + ----------------- + --------------------------------------- + ---------------------------------------------------
2 3/2 2 / 2\
/ ________\ / 2\ / 2\ ________ | / ________\ |
| / 2 | \1 + x / | / ________\ | / 2 | | / 2 | |
1 + \x + \/ 1 + x / | | / 2 | | \/ 1 + x *\1 + \x + \/ 1 + x / /
\1 + \x + \/ 1 + x / /
--------------------------------------------------------------------------------------------------------------------------------------------
2
/ ________\
| / 2 |
1 + \x + \/ 1 + x /
$$\frac{\frac{3 x \left(\frac{x^{2}}{x^{2} + 1} - 1\right)}{\left(x^{2} + 1\right)^{\frac{3}{2}}} + \frac{8 \left(x + \sqrt{x^{2} + 1}\right)^{2} \left(\frac{x}{\sqrt{x^{2} + 1}} + 1\right)^{3}}{\left(\left(x + \sqrt{x^{2} + 1}\right)^{2} + 1\right)^{2}} + \frac{6 \left(x + \sqrt{x^{2} + 1}\right) \left(\frac{x}{\sqrt{x^{2} + 1}} + 1\right) \left(\frac{x^{2}}{x^{2} + 1} - 1\right)}{\sqrt{x^{2} + 1} \left(\left(x + \sqrt{x^{2} + 1}\right)^{2} + 1\right)} - \frac{2 \left(\frac{x}{\sqrt{x^{2} + 1}} + 1\right)^{3}}{\left(x + \sqrt{x^{2} + 1}\right)^{2} + 1}}{\left(x + \sqrt{x^{2} + 1}\right)^{2} + 1}$$