A Definite integral where solution. involves infinity - infinity

[cpashok]

Homework Statement

Evaluate the integral.
http://www.freeimagehosting.net/uploads/176e17ca2f.jpg

Homework Equations

The Attempt at a Solution

 

[Mark44]

What work have you done on this? What makes you think that it is of the indeterminate form in the thread title?

When you start in on this, if you haven't done so already, look at the integral with limits of integration 0 and b, do the integration, and then take the limit as b approaches infinity.

In doing the integral, I would go at this using partial fractions.

 

[cpashok]

I have been trying to insert the images and during the edit , accidentally created another post. Please check the other post.
http://www.freeimagehosting.net/uploads/3168397520.jpg

 

[Mark44]

See my reply in the other thread.