1. The problem statement, all variables and given/known data Solve the following forced D.E. (Show work) L=10 R=20 C=0.01 x(0)=10 x'(0)=0 2. Relevant equations This is the second order D.E. for a forced LRC circuit L(d2x/dt2)+R(dx/dt)+x/C=200sin(t) 3. The attempt at a solution y=ygeneral+yparticular I calculated ygeneral to be ygeneral = e-tC1cos(3t)+e-tC2sin(3t) Now I need to find the particular solution for the DE. I've been trying to use undetermined coefficients, choosing Asin(t)+Bcos(t) as my initial guess but the algebra doesn't seem to work out. Can anyone help me out? Thanks for your time!