/ 2\
2 2*x*sign\-1 + x /
-- + -----------------
3 | 2 |
x |x - 1|
$$\frac{2 x \operatorname{sign}{\left(x^{2} - 1 \right)}}{\left|{x^{2} - 1}\right|} + \frac{2}{x^{3}}$$
/ / 2\ 2 2/ 2\ 2 / 2\\
| 3 sign\-1 + x / 2*x *sign \-1 + x / 4*x *DiracDelta\-1 + x /|
2*|- -- + ------------- - ------------------- + ------------------------|
| 4 | 2| 2 | 2| |
| x |-1 + x | / 2\ |-1 + x | |
\ \-1 + x / /
$$2 \left(\frac{4 x^{2} \delta\left(x^{2} - 1\right)}{\left|{x^{2} - 1}\right|} - \frac{2 x^{2} \operatorname{sign}^{2}{\left(x^{2} - 1 \right)}}{\left(x^{2} - 1\right)^{2}} + \frac{\operatorname{sign}{\left(x^{2} - 1 \right)}}{\left|{x^{2} - 1}\right|} - \frac{3}{x^{4}}\right)$$
/ 2/ 2\ 3 2/ 2\ 3 / 2 \ / 2\ 3 / 2\ / 2\\
|6 3*x*sign \-1 + x / 4*x *sign \-1 + x / 4*x *DiracDelta\-1 + x , 1/ 6*x*DiracDelta\-1 + x / 12*x *DiracDelta\-1 + x /*sign\-1 + x /|
4*|-- - ------------------ + ------------------- + --------------------------- + ----------------------- - ---------------------------------------|
| 5 2 3 | 2| | 2| 2 |
|x / 2\ / 2\ |-1 + x | |-1 + x | / 2\ |
\ \-1 + x / \-1 + x / \-1 + x / /
$$4 \left(\frac{4 x^{3} \delta^{\left( 1 \right)}\left( x^{2} - 1 \right)}{\left|{x^{2} - 1}\right|} - \frac{12 x^{3} \delta\left(x^{2} - 1\right) \operatorname{sign}{\left(x^{2} - 1 \right)}}{\left(x^{2} - 1\right)^{2}} + \frac{4 x^{3} \operatorname{sign}^{2}{\left(x^{2} - 1 \right)}}{\left(x^{2} - 1\right)^{3}} + \frac{6 x \delta\left(x^{2} - 1\right)}{\left|{x^{2} - 1}\right|} - \frac{3 x \operatorname{sign}^{2}{\left(x^{2} - 1 \right)}}{\left(x^{2} - 1\right)^{2}} + \frac{6}{x^{5}}\right)$$
/ 2/ 2\ 3 2/ 2\ 3 / 2 \ / 2\ 3 / 2\ / 2\\
|6 3*x*sign \-1 + x / 4*x *sign \-1 + x / 4*x *DiracDelta\-1 + x , 1/ 6*x*DiracDelta\-1 + x / 12*x *DiracDelta\-1 + x /*sign\-1 + x /|
4*|-- - ------------------ + ------------------- + --------------------------- + ----------------------- - ---------------------------------------|
| 5 2 3 | 2| | 2| 2 |
|x / 2\ / 2\ |-1 + x | |-1 + x | / 2\ |
\ \-1 + x / \-1 + x / \-1 + x / /
$$4 \left(\frac{4 x^{3} \delta^{\left( 1 \right)}\left( x^{2} - 1 \right)}{\left|{x^{2} - 1}\right|} - \frac{12 x^{3} \delta\left(x^{2} - 1\right) \operatorname{sign}{\left(x^{2} - 1 \right)}}{\left(x^{2} - 1\right)^{2}} + \frac{4 x^{3} \operatorname{sign}^{2}{\left(x^{2} - 1 \right)}}{\left(x^{2} - 1\right)^{3}} + \frac{6 x \delta\left(x^{2} - 1\right)}{\left|{x^{2} - 1}\right|} - \frac{3 x \operatorname{sign}^{2}{\left(x^{2} - 1 \right)}}{\left(x^{2} - 1\right)^{2}} + \frac{6}{x^{5}}\right)$$