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posted by on .

The sinusoid y=3cos(x+3)-2 has which of the following?

a. phase shift of 3 to the right
b. phase shift of 3 to the left
c. vertical shift up of 2
d. horizontal stretch by factor of 3

  • math - ,

    you mean compared to y = 3cos x ??
    then it would be b)

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