February 26, 2017

Homework Help: Calculus

Posted by Phil on Wednesday, November 14, 2007 at 12:13am.

I have the equation:
cos x - x = f(x)
I am told to find the relative extrema. I am also told to use the Second Derivative Test where applicable.
My question is how do I solve this problem, and how do I know when to use the Second Deriv test?

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