1. The problem statement, all variables and given/known data Find the frequency at which the circuit becomes purely resistive and calculate the effective resistance. Here is the circuit with the given solution- The trouble is, whilst the solution is simple enough, there are many places to go wrong, and the whole process is time comsuming. I've managed to simplify a few other answers given in this answer booklet, but for this one, i can't find an easier method. Any ideas? I can't find a similar example in Hughes. Thanks, Josh.