1. The problem statement, all variables and given/known data https://www.circuitlab.com/circuit/8ekkzw/dfsgadsfgdafgh/ For the circuit, suppose that the input voltage V_in is a superposition of 18 V DC and a sinusoidal component with a 6 V amplitude (thus the input voltage varies between 12 V and 24 V). Diode D1 is a 4.3 V zener diode. Describe the output voltage V_out. 3. The attempt at a solution Spent three hours already trying to figure it out, but I am just not getting anywhere.