1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Exponential theory

  1. Mar 27, 2010 #1
    e ^ (-2 ln |x + 1|) = e ^ ln [1 / (x + 1)^2]

    how can this happen?
    can anyone explain to me the process of this equation..
     
    Last edited: Mar 27, 2010
  2. jcsd
  3. Mar 27, 2010 #2

    CompuChip

    User Avatar
    Science Advisor
    Homework Helper

    Nice how you absolutely did not try to hide the fact that you copied this from another forum.

    The answer to your question: it is a known calculation rule for logarithms that
    y alog(x) = alog(xy)
    for any number a.
     
  4. Mar 27, 2010 #3

    Mark44

    Staff: Mentor

    I haven't see notation like that before. Is alog supposed to represent the log base a of something?

    The notation that is used more often for this property of logarithms, I believe, is this:
    loga (xy) = y loga(x)
     
  5. Mar 27, 2010 #4
    Thanks Mark44 =)
     
  6. Mar 27, 2010 #5

    CompuChip

    User Avatar
    Science Advisor
    Homework Helper

    Right, sorry.
    Where I come from alog is standard notation.
    But that is what I meant.
     
  7. Mar 27, 2010 #6

    Mark44

    Staff: Mentor

    I figured that's what it meant, but it's something I haven't run across it before.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Exponential theory
  1. Exponential Integral (Replies: 1)

  2. Exponential equation (Replies: 2)

Loading...