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monk68
07.07.2021 •
Mathematics
HELPPP IM ALMOST DONE WITH THIS CLASS
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Answers on questions: Mathematics
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Ответ:
Explanation:
Normally, cosine has a period of 2pi. This means that the curve repeats itself every 2pi units. However, this graph has a period of pi.
We can see this by noting that the distance from one peak such as x = 0 to another adjacent peak x = pi is exactly pi units across.
Since T = pi is the period, we then know that
B = (2pi)/T
B = (2pi)/(pi)
B = 2
Then recall that the general template is y = Acos(B(x-C))+D
In this case, A = 1, C = 0 and D = 0. So all of this leads to y = cos(2x)
Ответ:
Money earned on investment = $ 127
Money paid in interest = $ 304
Total loss = 304 -127 = $ 177