Results 1 to 2 of 2

Math Help - Help with inverse problem, please?

  1. #1
    Newbie
    Joined
    Nov 2007
    Posts
    8

    Help with inverse problem, please?

    The function is C(a)=0.824(1.084)^a in terms of a. The inverse of C(a) can be used to determine a as a function of C. Now the thing is, I have a problem figuring out the function of a in terms of C.

    C(a)=.824(1.084)^a
    A(c)= C^-1

    I just need help starting off this problem. Thanks!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by miyosuke View Post
    The function is C(a)=0.824(1.084)^a in terms of a. The inverse of C(a) can be used to determine a as a function of C. Now the thing is, I have a problem figuring out the function of a in terms of C.

    C(a)=.824(1.084)^a
    A(c)= C^-1

    I just need help starting off this problem. Thanks!
    You need to solve C = 0.824\, (1.084)^a for a. Take ln of both sides:

    \ln C = \ln \left[ \, 0.824\, (1.084)^a \, \right] = \ln 0.824 + \ln (1.084)^a = \ln 0.824 + a \ln 1.084.

    This has the form \ln C = A + B a:

    a = \frac{\ln (C) - A}{B} = ....
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Domain Problem and Inverse Problem
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: September 9th 2011, 04:21 AM
  2. [SOLVED] Dirichlet Inverse Problem
    Posted in the Number Theory Forum
    Replies: 1
    Last Post: June 27th 2011, 10:14 PM
  3. Inverse Function Problem
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: November 8th 2010, 05:22 AM
  4. Inverse function problem
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: January 24th 2010, 01:06 PM
  5. Inverse mod problem
    Posted in the Discrete Math Forum
    Replies: 2
    Last Post: May 20th 2008, 01:06 PM

Search Tags


/mathhelpforum @mathhelpforum