Mathematics, 16.10.2020 15:01 sahebahb

The voltage E in an electrical circuit is modeled by E = 1.5×cos 140×pi×t, where t is time measured in seconds. Find the frequency. (The number of cycles (periods) completed in 1 sec is the frequency of the function.)

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The voltage E in an electrical circuit is modeled by E = 1.5×cos 140×pi×t, where t is time measured...

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