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OpenStudy (anonymous):
Identify the maximum and minimum values of the function y = 8 cos x in the interval [-2π, 2π]. Use your understanding of transformations, not your graphing calculator.
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OpenStudy (anonymous):
If the max value of cos x is 1, then the max value of 8 cos x is 8. If the min value of cos x is -1, then the minimum value of 8 cos x is -8.
OpenStudy (anonymous):
thank you!!
OpenStudy (nurali):
Eight times the cosine of X has eight times the amplitude of the cosine of X.
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