What region r in the xy plane minimizes the value of $\displaystyle \int\int_{R}$ $\displaystyle (x^{2}+y^{2}-9)dA$ ? What are the reasons?

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- Mar 29th 2009, 07:56 PMantmanMinimizing a double integral
What region r in the xy plane minimizes the value of $\displaystyle \int\int_{R}$ $\displaystyle (x^{2}+y^{2}-9)dA$ ? What are the reasons?

- Mar 29th 2009, 09:01 PMrobeuler
- Apr 5th 2009, 03:56 PMantman
I recognize the equation of a circle but am unsure of how to answer it. Would R be the set of points (x,y) such that x^{2}+y^{2} is greater than 9?