@NickSandvik It's still not clear. I could assume. But I'd rather not. Are you saying that there is a 12 V DC voltage supply across R3 at t=0 and that V(C1)=12 V and that V(C2)=0 V at t=0 and that you are supposed to work out all the details for all the parts as time proceeds forward from t=0? If so, one simplification is to just toss out R1 and C1. They do nothing for t>0. Also, treat R3 as having its own schematic to analyze. That leaves only C2 and R2 to worry about.
↧