Mathematics, 14.07.2020 21:01, aidan2073
Business. Computer sales are generally subject to seasonal fluctuations. An analysis of the sales of a computer manufacturer during 2015-2017 is approximated by the function
s (t) = 0.082 cos, + 0.393 1 < t < 12
where t represents time in quarters (t = 1 represents the end of the first quarter of 2015), 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
Enclose arguments of functions in parentheses. For example, sin (2x)
s(t) =
Answers: 2
![s(t) = 0.082 [\frac{1 + cos(2t)}{2} ] + 0.3931](/tpl/images/0705/9325/a2e34.png)
Note that 
![s(t) = \frac{0.082}{2} [1 + cos(2t) ] + 0.393](/tpl/images/0705/9325/ea2d9.png)
![s(t) = 0.041 [1 + cos(2t) ] + 0.393](/tpl/images/0705/9325/353b2.png)
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Business. Computer sales are generally subject to seasonal fluctuations. An analysis of the sales of...
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