/ 2 \ 2*\(-1 + 2*cos(2*x)) *DiracDelta(x - sin(2*x)) + 2*sign(x - sin(2*x))*sin(2*x)/ ------------------------------------------------------------------------------- pi
/ 3 \ -2*\(-1 + 2*cos(2*x)) *DiracDelta(x - sin(2*x), 1) - 4*cos(2*x)*sign(x - sin(2*x)) + 12*(-1 + 2*cos(2*x))*DiracDelta(x - sin(2*x))*sin(2*x)/ -------------------------------------------------------------------------------------------------------------------------------------------- pi