1. The problem statement, all variables and given/known data Find the real part of z, given that 1/z = 1/R + 1/(iωL) 2. Relevant equations 3. The attempt at a solution I rearranged to find z, and got that z = R + iωL. So that would make the Re(z)=R, wouldn't it?? It's wrong, but I don't have a clue why!