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1. Using the complementary function and particular integral method find the solutio of the differential equation.
d2y/dx^2 + 3 dy/dx +2y = 20cos2x
Which satisfies y(0) = 1 y'(0) = 0
d2y/dx^2 + 3 dy/dx +2y = 20cos2x
Which satisfies y(0) = 1 y'(0) = 0