My Math Forum Improper integral

 Calculus Calculus Math Forum

 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 $\int_{0}^{\infty}f$ and $\int_{-\infty}^{0}f$. Use a u sub to find the integrals.
February 23rd, 2009, 01:12 PM   #3
Global Moderator

Joined: May 2007

Posts: 6,510
Thanks: 584

Re: Improper integral

Quote:
 Originally Posted by tnutty -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...?
Your problem statement is incomplete. Do you want indefinite integral or definite integral? If you want definite integral, what limits?

 Tags improper, integral

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post unwisetome3 Calculus 2 April 8th, 2013 10:45 AM mathrookie2012 Calculus 7 April 21st, 2012 08:14 PM chapsticks Calculus 1 February 26th, 2012 11:59 AM citbquinn Calculus 2 March 15th, 2011 10:42 AM izseekzu Calculus 1 April 13th, 2010 03:37 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top