1 1
----------- + --------------------
________ _______ ________
/ 2 \/ 1 + x *\/ -1 + x
\/ 1 + x
$$\frac{1}{\sqrt{x^{2} + 1}} + \frac{1}{\sqrt{x - 1} \sqrt{x + 1}}$$
/ x 1 1 \
-|----------- + ----------------------- + -----------------------|
| 3/2 3/2 ________ _______ 3/2|
|/ 2\ 2*(1 + x) *\/ -1 + x 2*\/ 1 + x *(-1 + x) |
\\1 + x / /
$$- (\frac{x}{\left(x^{2} + 1\right)^{\frac{3}{2}}} + \frac{1}{2 \sqrt{x - 1} \left(x + 1\right)^{\frac{3}{2}}} + \frac{1}{2 \left(x - 1\right)^{\frac{3}{2}} \sqrt{x + 1}})$$
2
1 1 3*x 3 3
- ----------- + ------------------------ + ----------- + ----------------------- + -----------------------
3/2 3/2 3/2 5/2 5/2 ________ _______ 5/2
/ 2\ 2*(1 + x) *(-1 + x) / 2\ 4*(1 + x) *\/ -1 + x 4*\/ 1 + x *(-1 + x)
\1 + x / \1 + x /
$$\frac{3 x^{2}}{\left(x^{2} + 1\right)^{\frac{5}{2}}} - \frac{1}{\left(x^{2} + 1\right)^{\frac{3}{2}}} + \frac{3}{4 \sqrt{x - 1} \left(x + 1\right)^{\frac{5}{2}}} + \frac{1}{2 \left(x - 1\right)^{\frac{3}{2}} \left(x + 1\right)^{\frac{3}{2}}} + \frac{3}{4 \left(x - 1\right)^{\frac{5}{2}} \sqrt{x + 1}}$$