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23-07-2016
Mathematics

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

Respuesta :

23-07-2016

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

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