The voltage across a device is given by v(t) = -2 + 10 cos 4t + 8 cos 6t + 6 cos 8t - 5 sin 4t – 3 sin 6t - sin 8t V
Find:
(a) the period of v(t),
(b) the average value of v(t),
(c) the effective value of v(t).
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