An amplifier has a spectrally pure sine-wave input of 50 mv. It has a voltage gain of 60. a spectrum yzer?

an amplifier has a spectrally pure sine-wave input of 50 mv. It has a voltage gain of 60. a spectrum yzer shows harmonics of 0.035v, 0.027v, 0.019v, 0.011v, and 0.005 v calculate the total harmonic distortion (THD) and the relative harmonic distortion.