With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Regarding the alternating current waveform , the RMS voltage is the square Root of the Mean of the Square of the instantaneous voltage .
text_B: Below it is assumed an AC waveform ( with no DC component ) .The RMS voltage is the square Root of the Mean over one cycle of the Square of the instantaneous voltage . *For an arbitrary periodic waveform of period :
REFUTES.