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An alternating current for outlets in a home has voltage given by the function V(t) = 150cos368t, where V is the voltage in volts at

An alternating current for outlets in a home has voltage given by the function V(t) = 150cos368t, where V is the voltage in volts at time t in seconds. a. Find the period of the function and interpret its meaning. b. Determine the number of periods that occur when 1 sec has passed.

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