The MOSFET in the following common-gate amplifier has Cgs = 2.0 pF, Cgd = 0.5 pF, CL = 3 pF, gm = 5 mS, Rsig = 1 kΩ, and RL = 20 kΩ. The MOSFET has a ro = ∞. Find the midband voltage gain vo/vsig. Estimate the high cutoff frequency of the circuit, fH.