Find the general solution of the differential equation. y(4) + 2y″ + y = 7 + cos(2t). NOTE: Use C₁, C2, C3 and c4 for arbitrary constants. y(t) = =c₁ sin(t) + C₂ t sin(t) + c3 cos(t) + 7 cos(2 t) 9 + C₁t cos(t) + 7 cos(2 t) 9

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