Evaluate: $\displaystyle \int_0^{\infty}\int_0^{\infty}(1 + x^2 + y^2)^{-2} dxdy$

How would I go about evaluating this integral?

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- Jun 7th 2010, 12:24 PMShananayDouble Improper Intergral
Evaluate: $\displaystyle \int_0^{\infty}\int_0^{\infty}(1 + x^2 + y^2)^{-2} dxdy$

How would I go about evaluating this integral? - Jun 7th 2010, 12:25 PMTheEmptySet
- Jun 7th 2010, 12:46 PMShananay
- Jun 7th 2010, 01:13 PMTheEmptySet