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Homework Help: 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

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    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

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    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.
     
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