Engineering Superposition Circuits: Approach to Solving

[Jason03]

I was looking to an approach for this problem below...

http://img389.imageshack.us/img389/9387/screenshot003yw2.png

 

[CEL]

Use superposition.
With the dc source, the inductor is a short circuit and the capacitor is an open circuit.
With the ac source the inductor impedance is j\omega L and the capacitor impedance is \frac{1}{j\omegaC}.