1. The problem statement, all variables and given/known data Two independent sources are given. They are active at different times. Find the conditions at t = 0- DCSS (aka t < 0 DCSS) and t = ∞ DCSS for IL and Vc 2. Relevant equations At DCSS, replace inductor with short circuit At DCSS, replace capacitor with open circuit 3. The attempt at a solution So I need to find the initial and final conditions. Let's start with initial conditions at t = 0- DCSS. The [2 + 5u(t)]V becomes 2 V. The 4u(t) I am not 100% sure about, but I think it becomes a short circuit. Then I replace the inductor and capacitor with a short and open circuit respectively because it is in DCSS. Is this correct? The switches at 2 + 5u(t) and 4u(t) are giving me a bit of a problem understanding and I'm not sure if I'm doing it right. As for the final conditions at t = ∞, I have no clue where to start.