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Mathematics, 01.01.2020 06:31 shakira11harvey6

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what are the phase shift and period for the function
y= 2cos1/2(0+30\deg )-4?

a. phase shift: 30â° left, period: 720â°
b. phase shift: 30â° right, period: 330â°
c. phase shift: 30â° right, period: 90â°
d. phase shift: 30â° left, period: 180â°

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