Back to the basics! For some reason I thought it was going to be way more difficult.
My final solution is U(x,t)=f(3x-t) + g(x-3t) - sin(x+t)/16
Thanks for your help! :smile:
I need help solving 3Utt+10Uxt+3Uxx=sin(x+t)
I have found the homogeneous part, which is U(x,t)=f(3x-t) +g(x-3t), but I don't know where to go from there. Any help would be much appreciated!