I'm confused on how to approach this question.. Show that the rms value for the sawtooth voltage shown in Figure 33.54 is Delta V_max / sqrt 3. All Figure 33.54 shows is a graph of Delta V vs time with amplitudes of +Delta V_max and -Delta V_max with the sawtooth wave going between the amplitudes three times, starting at -Delta V_max and ending at -Delta V_max. How would I go about starting this question? The only thing I can think of using to start is, Delta V_rms = Delta V_max / sqrt 2 = .707 * Delta V_max. I have no idea how or why I should use this though.. I'm completely stuck.. Any help is greatly appreciated. Thanks in advance.