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