1] Given f(D)y = x e2*sin3x + x² . The roots of the auxiliary equation of yp. assuming yp is the particular solution of some homogeneous linear differential equation with constant coefficients are : (a) 2 +3i, 0 (c) 2+ 3i, 2 + 3i, 0,0,0 (b) 2 + 3i, 2 + 3i, 0,0 (d) 2 + 3i, 2 + 3i, 2 + 3i , 0,0

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