SOLUTION: what is the range of the function y=3(cosx)-1

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Question 511876: what is the range of the function y=3(cosx)-1
Answer by lwsshak3(11628) About Me  (Show Source):
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what is the range of the function y=3(cosx)-1
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The range of 3(cosx) is (-3, 3)
3(cosx)-1, means dropping the entire curve one unit down which makes the range of given function (-4, 2)