Solve the problem.The current I, in amperes, flowing through a particular ac (alternating current) circuit at time t seconds is I = 220 sin (25?t)What is the period and amplitude of the current?
A. period = 
second, amplitude = 220
B. period = 
second, amplitude = 25
C. period = 
second, amplitude = 75
D. period = 25? seconds, amplitude = 
Answer: A
Mathematics
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