General solution of differential equation y '- 2Y' + y = SiNx + X (e ^ x) RT

General solution of differential equation y '- 2Y' + y = SiNx + X (e ^ x) RT

The characteristic equation of ∵ y '' - 2Y '+ y = 0 is R & sup2; - 2R + 1 = 0, then the general solution of ∵ y' '- 2Y' + y = 0 is y = (c1x + C2) e ^ x (C1, C2 are integral constants) ∵ let the special solution of ∵ y '' - 2Y '+ y = SiNx + Xe ^ X be y = acosx + bsinx + CX & sup3; e ^ XY' = - asinx + bcosx + 3CX & sup2; e ^ x + CX & sup3; e ^ XY '' = -