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18. (a) Find the general solution of
(d^2y)/(dt^2) + 4(dy/dt) + 20y = 3 + 2cos2t
(b) Discuss the long-term behavior of solutions of this equation.© BrainMass Inc. brainmass.com March 4, 2021, 8:14 pm ad1c9bdddf
The general solution to a differential equation is found. The solution is detailed and well presented.