Sales of computers are subject to seasonal fluctuations. Computer City's sales of computers in 1995 and 1996 can be approximated by the function

?



?

where t is time in quarters ( represents the end of the first quarter of 1995) and  is computer sales (quarterly revenue) in billions of dollars. Estimate Computer City's maximum and minimum quarterly revenue from computer sales.

?



A. ,
B. ,
C. ,
D. ,
E. ,


Answer: E

Mathematics

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