The oscillating current in an electrical circuit is as follows, where I is measured in amperes and t is measured in seconds. I = 3 sin(60?t) + cos(120?t) Find the average current for each time interval. (Round your answers to three decimal places.) (a)     0 ≤ t ≤ 1/60   _________ amps (b)     0 ≤ t ≤ 1/240   ___________ amps (c)      0 ≤ t ≤ 1/30  ____________ amps

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