Problem 3: Electrical eng.) a. The voltage gain of an amplifier is given by this formula: voltage gain = 2 +0.5 275 fis the frequeney in Hz. n is the number of stages in the amplifier. Using this formula, write, compile, and run a C++ program to determine the value of the volt- age gain for a four-stage amplifier operating at a frequency of 120 Hz. Your program should produce the following display: At a frequency of xxxxx hertz, the voltage gain is yyyyy Your program should replace axxxcx with the frequency and yyvyy with the voltage gain. 0 TypehereTo search