SOLUTION: what is the range of F(x) = -4xcos2x?

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Question 877650: what is the range of F(x) = -4xcos2x?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
graph%28300%2C300%2C-20%2C20%2C-100%2C100%2C-4x%2Acos%282x%29%29
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This function is unbounded.
Range : (-infinity,infinity)