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23-07-2016
Mathematics

Answered

What are the phase shift and period for the function y = 3cos[4(θ + 60°)] − 2?

Verified Answer :

23-07-2016

The function can be expanded as follows:
\(y=3\ cos(4\theta+240)-2\)
The phase shift is:
\(\frac{240}{4}=60\ degrees\)
The period is:
\(\frac{2\pi}{4}=\frac{\pi}{2}\)

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