An amplifier with Ri = 2 kΩ, Ro = 500Ω, and Rmoc = -107 is operated with a 1-kΩ, load. A source having a Thévenin resistance of 1kΩ and an open-circuit voltage of 2 cos(200 πt) mV is connected to the input terminals. Determine the output voltage as a function of time and the power gain.