Consider this waveform equation: a. What is the frequency of the waveform (in Hz)? b. What is the voltage Vx at a time t = 1.5 ms? c. What is the voltage Vx at a time t = 3 ms? d. What is the voltage Vx at a time t = 4.5 ms? What is the rms voltage of the waveform from question 6? An AC signal has an rms voltage of 125 mV. What is the peak voltage of the signal?