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

User BenjaminLinus
by
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The function can be expanded as follows:

y=3\ cos(4\theta+240)-2
The phase shift is:

(240)/(4)=60\ degrees
The period is:

(2\pi)/(4)=(\pi)/(2)
User Brett Sanders
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