Results 1 to 2 of 2

Math Help - proving

  1. #1
    Super Member
    Joined
    Aug 2009
    Posts
    639

    proving

    how do you prove that the lim xe^(-x) tends to 0 as x tends to infinity?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,758
    Thanks
    493
    Quote Originally Posted by alexandrabel90 View Post
    how do you prove that the lim xe^(-x) tends to 0 as x tends to infinity?
    rewrite as ...

    \lim_{x \to \infty} \frac{x}{e^x}

    use L'Hopital
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Proving |a+b| = |a|+|b|
    Posted in the Algebra Forum
    Replies: 3
    Last Post: June 5th 2010, 08:53 AM
  2. Proving...
    Posted in the Advanced Algebra Forum
    Replies: 6
    Last Post: October 2nd 2009, 02:58 PM
  3. Proving an identity that's proving to be complex
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: July 21st 2009, 01:30 PM
  4. proving
    Posted in the Algebra Forum
    Replies: 3
    Last Post: January 15th 2009, 07:43 AM
  5. proving help
    Posted in the Algebra Forum
    Replies: 4
    Last Post: January 12th 2009, 04:42 PM

Search Tags


/mathhelpforum @mathhelpforum