Find a particular solution to
y'' + 9y = -18sin(3t)© BrainMass Inc. brainmass.com March 4, 2021, 6:04 pm ad1c9bdddf
Because this is a linear ODE with constant coeffs, then we can guess yp as follow:
yp= Acos(3t)+ Bsin(3t)
However, if we look ...
A 2nd order ODE is solved. The solution is detailed.