Determine the phase shift of the function.y = -2 cos 

A. -?
B.  
C. -  
D. 2?


Answer: A

Mathematics

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A. -24? B. 48 C. -48? D. 24?

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Provide an appropriate response.If a ? b, is it always true that a2 ? b2? Explain.

What will be an ideal response?

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