Write the function in the form 
or 
. Find the period and phase shift.y = 5 cos (?x - 6)
A. y = 5 cos
period = 5; phase shift = - 
B. y = 5 cos
period = 2; phase shift = 6
C. y = 5 cos
period = ?; phase shift = 6
D. y = 5 cos
period = 2; phase shift = 
Answer: D
Mathematics
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