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Topic: Rectangle with maximum area
Replies: 10   Last Post: Mar 4, 2005 1:08 AM

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Bob

Posts: 27
Registered: 1/29/05
Re: Rectangle with maximum area
Posted: Feb 27, 2005 8:17 PM
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On Mon, 28 Feb 2005 00:47:36 +0000 (UTC), rasputin16002002@yahoo.co.uk
(newatthis) wrote:

>hello
>Rectangle has a perimeter of 68.Find the lengths of those sides that
>give you maximum area for that rectangle
>
>2a+2b=68
>
>a*b=A
>


Substitute first eqn in the second, so you have A as a function of one
variable. Differentiate...

bob





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