Results 1 to 3 of 3

Math Help - Simplifiying a log expression

  1. #1
    Member
    Joined
    Sep 2007
    From
    Colorado
    Posts
    145

    Simplifiying a log expression

    Simplify the expression log_{49}(7) How is the answer 1/2?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    o_O
    o_O is offline
    Primero Espada
    o_O's Avatar
    Joined
    Mar 2008
    From
    Canada
    Posts
    1,407
    Properties that will help you:
    \log_{a} b = \frac{\log b}{\log a}

    Noting that 49 = 7^{2}, keep in mind that: \log a^{b} = b\log a
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Sep 2007
    From
    Colorado
    Posts
    145
    [Math]ln7/ln49/[/tex] = .5
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 20
    Last Post: January 15th 2012, 10:30 AM
  2. Replies: 6
    Last Post: October 6th 2011, 02:48 PM
  3. Simplifiying help!
    Posted in the Algebra Forum
    Replies: 1
    Last Post: April 28th 2010, 10:49 PM
  4. Help simplifiying expression
    Posted in the Algebra Forum
    Replies: 2
    Last Post: August 27th 2009, 09:43 AM
  5. Simplifiying - problem with parentheses
    Posted in the Algebra Forum
    Replies: 1
    Last Post: May 16th 2008, 10:34 PM

Search Tags


/mathhelpforum @mathhelpforum