1. The problem statement, all variables and given/known data Find Vth and Zth. frequency = 2kHz 2. Relevant equations w = 2 * (pi) * f ZL = j w L ZC = -j / (w * C) V = I*Z ZR = R 3. The attempt at a solution At first I tried using nodal analysis which I receive the value V = 0 v. I believe this is because this circuit only has dependent voltage sources. Therefore, the Vth is just 0 v. 10mH ---> j125.7 1uF ---> -j79.6 100 ohms ---> 100 w = 2*(pi)*2000 = 12566.37 Essentially, I am stuck. I have some theories as to what I can do though. I remember from DC circuit analysis that we can either add a 1v or a 1A (the number is arbitrary) source between terminals a and b, but I'm not sure what to do beyond that. Could I add a 1A (i.e. 1*cos(wt)) between the terminals, and then do nodal analysis? Then after that, would I take that voltage and divide it by the 1A (1cos(wt)) AC source to get the Zth? And as I mentioned above, wouldn't the thevenin equivalent of this circuit not even have a Vth since there's no independent sources?