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The voltage across the terminals of a typical electrical outlet is approximated by V(t)=142sin(160πt), where t is measured in seconds.Answer parts (a) through (c).(a) Find the amplitude and the period for V(t).(b) Find the frequency of V(t), that is, the number of cycles completed in one second.(c) Graph V(t) over the interval [0, 1/40]
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