$$\cos{\left(\left|{x}\right| \right)} \operatorname{sign}{\left(x \right)}$$
2
- sign (x)*sin(|x|) + 2*DiracDelta(x)*cos(|x|)
$$- \sin{\left(\left|{x}\right| \right)} \operatorname{sign}^{2}{\left(x \right)} + 2 \cos{\left(\left|{x}\right| \right)} \delta\left(x\right)$$
3
- sign (x)*cos(|x|) + 2*DiracDelta(x, 1)*cos(|x|) - 6*DiracDelta(x)*sign(x)*sin(|x|)
$$- \cos{\left(\left|{x}\right| \right)} \operatorname{sign}^{3}{\left(x \right)} - 6 \sin{\left(\left|{x}\right| \right)} \delta\left(x\right) \operatorname{sign}{\left(x \right)} + 2 \cos{\left(\left|{x}\right| \right)} \delta^{\left( 1 \right)}\left( x \right)$$