Business. Computer sales are generally subject to seasonal
Chapter 7, Problem 52(choose chapter or problem)
Business. Computer sales are generally subject to seasonal uctuations. An analysis of the sales of a computer manufacturer during 20082010 is approximated by the functionwhere t represents time in quarters (t 1 represents the end of the rst quarter of 2008), and s(t) represents computer sales (quarterly revenue) in millions of dollars. Use a double-angle identity to express s(t) in terms of the cosine function.
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