Electricity is supplied to homes in the form of alternating current, which means that the voltage has a sinusoidal waveform described by an equation of the form
(see the accompanying figure). In this equation,
(a) Show that
(b) In the United States, electrical outlets supply alternating current with an rms voltage of
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- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage