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Math Help - Help with graphing in calc

  1. #1
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    Exclamation Help with graphing in calc

    Hi!

    I was just given some homework from my professor and I've found it to be a little tougher than I thought; So if anyone could help that'd be awesome!!

    The problem I have is 2cos^2x-4sinx x between 0, 2pi and we're looking for where it is increasing and decreasing, the local max and min values, inflection points and the intervals where the graph is concave up and concave down.

    Thank you in advance for helping me out! I missed a day and obviously it has been keeping me from doing well!
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  2. #2
    MHF Contributor
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    Re: Help with graphing in calc

    Quote Originally Posted by BernieBriggs View Post
    Hi!

    I was just given some homework from my professor and I've found it to be a little tougher than I thought; So if anyone could help that'd be awesome!!

    The problem I have is 2cos^2x-4sinx x between 0, 2pi and we're looking for where it is increasing and decreasing, the local max and min values, inflection points and the intervals where the graph is concave up and concave down.

    Thank you in advance for helping me out! I missed a day and obviously it has been keeping me from doing well!
    look at this

    Since you posted in calculus I assume you can take derivatives and find minima and maxima of functions etc. Well do all that. You'll need to find the first and second derivatives of your function, and you'll need to solve where the first derivative equals zero on your interval of 0, 2pi.
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