The oscillating current in an electrical circuit is as follows, where i is measured in amperes and t is measured in seconds. i = 7 sin(60πt) + cos(120πt). find the average current for each time interval. (round your answers to three decimal places.) (a) 0 ≤ t ≤ 1 60 amps
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![=60\left [ \frac{-7}{60\pi }\cos (60\pi t)+\frac{1}{120\pi }\sin (120\pi t)\right ]_{0}^{\frac{1}{60}}](/tpl/images/0424/9358/11f34.png)
![=60\left [ \frac{-7}{60\pi }\left ( \cos \pi-\cos 0\right )+\frac{1}{120\pi }\left ( \sin (2\pi )-\sin (0)\right )\right ]](/tpl/images/0424/9358/5d222.png)
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