Bryanj00 Bryanj00

17-04-2018
Mathematics

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What is the phase shift and period for the function y = 5cos2(0 + 45) - 7

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wrays27wrays27 wrays27wrays27

17-04-2018

5cos2(x + 45) - 7
The period for cos = 2pi/k
The k = 2 so the period = pi
The phase shift is 45 degrees to the left.

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