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13. The voltage of a wall socket after t seconds is represented by V(t) = -75sin(90t - 45). a) Determine the frequency, period, and amplitude

13. The voltage of a wall socket after t seconds is represented by V(t) = -75sin(90t - 45). a) Determine the frequency, period, and amplitude of the voltage.b) Find all solutions for when a maximum occurs, and for which a minimum occurs

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