February 22nd, 2009, 07:07 PM  #1 
Newbie Joined: Feb 2009 Posts: 21 Thanks: 0  Improper integral
infinity S xe^x^2 //READ AS : x times e to the power of  x squared infinity I don't think I could use integration by parts. so I am confused. I could split the limits into two but...? 
February 22nd, 2009, 07:42 PM  #2 
Senior Member Joined: Dec 2008 Posts: 306 Thanks: 0  Re: Improper integral
Split it into two integrals and . Use a u sub to find the integrals.

February 23rd, 2009, 01:12 PM  #3  
Global Moderator Joined: May 2007 Posts: 6,338 Thanks: 532  Re: Improper integral Quote:
 

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