Constants Part A Use the first four nonzero terms in the Fourier series approximation of the periodic voltage shown in (Figure 1) to estimate its rms value. Suppose that Vm= 167 V Express your answer to four significant figures and include the appropriate units. View Available Hint(s) li ? V = Value Units Figure 1 of 1 > Submit Part B M Vm/4 Calculate the true rms value of the voltage Express your answer to four significant figures and include the appropriate units. T/4 1/2 31/4 View Available Hint(s) -Vm/4 HA ? - Vm V = Value Units Part C Calculate the percentage of error in the estimated value. Express your answer as a percentage to three significant figures. View Available Hint(s) IVO AO it vec 0 ? % Error = % Submit