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anonymous
 5 years ago
Write the equation of the cosine function with amplitude 2 period 4p
anonymous
 5 years ago
Write the equation of the cosine function with amplitude 2 period 4p

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Amplitude* cos(2pi/period)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0period of \[cos(bx)\] is \[\frac{2\pi}{b}\] here you want period of \[4\pi\] so set \[\frac{2\pi}{b}=4\pi\] and solve for \[b\] to get \[b=\frac{1}{2}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so your function will be \[2cos(\frac{x}{2})\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0much faster this afternoon yes?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0"Write the equation of the cosine function with amplitude 2; period 4p" This depends on what exactly they mean by 4p, maybe (4pi?) but: 2 cos(x/2)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0little but, they must have replaced the Dcells in the ti83 lol
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