x
1 + -----------
________
/ 2
1 \/ 1 + x x*atan(x)
- ----------- + --------------- - -----------
________ ________ ________
/ 2 / 2 / 2
\/ 1 + x x + \/ 1 + x \/ 1 + x
$$- \frac{x \operatorname{atan}{\left(x \right)}}{\sqrt{x^{2} + 1}} + \frac{\frac{x}{\sqrt{x^{2} + 1}} + 1}{x + \sqrt{x^{2} + 1}} - \frac{1}{\sqrt{x^{2} + 1}}$$
2
/ x \ 2
|1 + -----------| x
| ________| -1 + ------
| / 2 | 2 2
atan(x) \ \/ 1 + x / x *atan(x) 1 + x
- ----------- - ------------------ + ----------- - -----------------------------
________ 2 3/2 ________ / ________\
/ 2 / ________\ / 2\ / 2 | / 2 |
\/ 1 + x | / 2 | \1 + x / \/ 1 + x *\x + \/ 1 + x /
\x + \/ 1 + x /
$$\frac{x^{2} \operatorname{atan}{\left(x \right)}}{\left(x^{2} + 1\right)^{\frac{3}{2}}} - \frac{\operatorname{atan}{\left(x \right)}}{\sqrt{x^{2} + 1}} - \frac{\left(\frac{x}{\sqrt{x^{2} + 1}} + 1\right)^{2}}{\left(x + \sqrt{x^{2} + 1}\right)^{2}} - \frac{\frac{x^{2}}{x^{2} + 1} - 1}{\left(x + \sqrt{x^{2} + 1}\right) \sqrt{x^{2} + 1}}$$
3 / 2 \
/ x \ / 2 \ / x \ | x |
2*|1 + -----------| | x | 3*|1 + -----------|*|-1 + ------|
| ________| 3*x*|-1 + ------| | ________| | 2|
2 | / 2 | 3 | 2| | / 2 | \ 1 + x /
1 x \ \/ 1 + x / 3*x *atan(x) 3*x*atan(x) \ 1 + x / \ \/ 1 + x /
- ----------- + ----------- + -------------------- - ------------ + ----------- + ----------------------------- + ---------------------------------
3/2 5/2 3 5/2 3/2 3/2 / ________\ 2
/ 2\ / 2\ / ________\ / 2\ / 2\ / 2\ | / 2 | ________ / ________\
\1 + x / \1 + x / | / 2 | \1 + x / \1 + x / \1 + x / *\x + \/ 1 + x / / 2 | / 2 |
\x + \/ 1 + x / \/ 1 + x *\x + \/ 1 + x /
$$\frac{2 \left(\frac{x}{\sqrt{x^{2} + 1}} + 1\right)^{3}}{\left(x + \sqrt{x^{2} + 1}\right)^{3}} - \frac{3 x^{3} \operatorname{atan}{\left(x \right)}}{\left(x^{2} + 1\right)^{\frac{5}{2}}} + \frac{3 x \operatorname{atan}{\left(x \right)}}{\left(x^{2} + 1\right)^{\frac{3}{2}}} + \frac{3 \left(\frac{x}{\sqrt{x^{2} + 1}} + 1\right) \left(\frac{x^{2}}{x^{2} + 1} - 1\right)}{\left(x + \sqrt{x^{2} + 1}\right)^{2} \sqrt{x^{2} + 1}} + \frac{3 x \left(\frac{x^{2}}{x^{2} + 1} - 1\right)}{\left(x + \sqrt{x^{2} + 1}\right) \left(x^{2} + 1\right)^{\frac{3}{2}}} + \frac{x^{2}}{\left(x^{2} + 1\right)^{\frac{5}{2}}} - \frac{1}{\left(x^{2} + 1\right)^{\frac{3}{2}}}$$