The operational amplifier shown in the Figure 3 is ideal.
a) Calculate the $V_o/V_g$ voltage gain in the middle frequency region.
b) The lower cut-off frequency of the circuit is required to be $f_1 = 20Hz$ and the asymptote slope to be 40 dB / decade. Calculate the capacitor values $C_1$ and $C_2$ that will provide the specified feature.
c) Calculate the upper cutoff frequency of the circuit.