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- August 30th 2011, 11:51 AM #1

- Joined
- Aug 2011
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- 3

## max min problem

rectangular plot of farm land will be bounded on one side by a river and the other 3 sides by a single strand of electric wire. With 800 metres of wire at your disposal what is the largest area you can enclose and what are its dimensions.

my answers : 80000m^2

1st I let the perimeter = 800

2y+x= 800

then i subbed into the equation for the area A=xy and let it equal to zero.

but i got to differentiate is this wrong?

could someone verify my anwer?

- August 30th 2011, 12:31 PM #2