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#### thatonekid

##### New member

- Nov 27, 2012

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**Use residues toe evaluate the improper integral**

Use residues toe evaluate the improper integral

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$$\int_{0}^{\infty} \dfrac{dx}{(x^2 +9)^3}.$$

Explain all steps including convergence. No need to simplify the final answer.

I took this off a old mid-term that I was looking at, no solution is provided, wonder if anyone had any idea how to start this problem off. Thanks!

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