read what i said

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- November 24th 2012, 09:34 AMPetrusRe: Having problems finding a value for X using derivatives.
read what i said

- November 24th 2012, 10:51 AMMarkFLRe: Having problems finding a value for X using derivatives.
Yes, to find potential extrema, you equate the first derivative to zero and solve for

*x*to get the critical number(s).

Then, evaluate the second derivative at these critical number(s), and if the result is positive you have a relative minimum, if it is negative you have a relative maximum, and if it is zero then there is no extremum at that point. - November 24th 2012, 05:01 PMProve ItRe: Having problems finding a value for X using derivatives.