Use the method of undetermined coefficients to solve the initial value problem. 27 41 y = - 40 cos2r+sin2t 10 41 27 y = cos2t sin2t + 10 40 27 41 10 cos21- sin21 + 40 27 41 comt+ 4 8 sin?+ + 3 y" + 4y = f + 4e¹, y(0) = 0, y'(0) = 9 + 22.9

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