Results 1 to 5 of 5

Math Help - Natural Logs help

  1. #1
    Newbie
    Joined
    Jul 2010
    Posts
    9

    Natural Logs help

    ln (e^{x^2-y^2})

    Anyone able to help me?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Master Of Puppets
    pickslides's Avatar
    Joined
    Sep 2008
    From
    Melbourne
    Posts
    5,236
    Thanks
    28
    Follow this.

    \log_ab^c = c\log_ab
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor Also sprach Zarathustra's Avatar
    Joined
    Dec 2009
    From
    Russia
    Posts
    1,506
    Thanks
    1
    Use this formula:

    ln (a)^b=b \cdot ln(a)
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor

    Joined
    Apr 2005
    Posts
    15,405
    Thanks
    1328
    Another way to do basically what pickslides and Also sprach Zarathustra suggest is to use the fact that ln(x) and e^x are inverse functions: ln(e^x)= x.
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by orkdork View Post
    ln (e^{x^2-y^2})

    Anyone able to help me?
    If you say what you're meant to be doing with this expression, then the answer to "anyone able to help me?" might be yes.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. fun with natural logs....
    Posted in the Calculus Forum
    Replies: 2
    Last Post: April 5th 2011, 06:39 AM
  2. Replies: 9
    Last Post: February 22nd 2011, 05:39 PM
  3. Natural logs????
    Posted in the Algebra Forum
    Replies: 4
    Last Post: September 7th 2008, 03:38 AM
  4. Dealing with Logs and Natural Logs
    Posted in the Advanced Algebra Forum
    Replies: 0
    Last Post: April 14th 2008, 06:18 AM
  5. several questions-logs/natural logs
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: November 12th 2007, 08:58 PM

Search Tags


/mathhelpforum @mathhelpforum