My Math Forum Minimum Dimensions

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 November 8th, 2012, 09:12 PM #21 Senior Member   Joined: Aug 2012 From: South Carolina Posts: 866 Thanks: 0 Re: Minimum Dimensions in this case I am having trouble with the x raised to the negative 2 need help
 November 8th, 2012, 09:18 PM #22 Senior Member     Joined: Jul 2012 From: DFW Area Posts: 635 Thanks: 96 Math Focus: Electrical Engineering Applications Re: Minimum Dimensions You should have: $P'(x)=2-\frac{A}{x^2} \$ set to 0.  $\frac{A}{x^2}=2$ $A=2x^2$ $x^2=\frac{A}{2}$
 November 8th, 2012, 09:19 PM #23 Senior Member   Joined: Aug 2012 From: South Carolina Posts: 866 Thanks: 0 Re: Minimum Dimensions ok I follow now

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### pasture area 245000 find the mimimum lenght

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