Homework Help: calculus

Posted by Frank on Thursday, February 24, 2011 at 3:08pm.

Please help with this. I need the first derivative of f(x)=4(x+squareroot (x(8-x)) and then the second derivative of this to show by the second derivative test that it is a local maximum. This is difficult to put into form here and I hope I have got it right. Many thanks.

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