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Math Help - what is the range (minimum and maximum values of:

  1. #1
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    what is the range (minimum and maximum values of:

    y=2cos(4X+1)


    heeeeeeeeeeeeelp
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  2. #2
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    e^(i*pi)'s Avatar
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    What do you know about the graph of f(\theta) = \cos \theta and more generally g(\theta) = af(\theta) where a is some constant
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