Question: The current (in A) in a certain AC circuit is given by i = 4sin(120t + /2). Use the sum formula for sine to write

The current (in A) in a certain AC circuit is given by i = 4sin(120πt + π/2). Use the sum formula for sine to write this in a different form and then simplify.

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The sum formula for sine states that sina b sinacosb cosasinb We can apply this form... View full answer

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