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September 18, 2014

September 18, 2014

Posted by **George** on Saturday, October 25, 2008 at 2:40pm.

Does this have to do with the first derivative rule or second derivative rule and then substituting what you get to double check?

- Calculus -
**Damon**, Saturday, October 25, 2008 at 5:11pmI guess you mean you are looking for maxima and minima of the function within the given domain

Look for points where the first derivative is zero. Those are maxima or minima or points where the slope is zero and then continuing up or down.

Take the second derivative at those points

if the second derivative is +, that is a minimum

if -, that is a maximum

if zero, then it is just a pint where the function flattens out

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