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Homework Help: Griffiths page 146

  1. Feb 24, 2008 #1
    [SOLVED] Griffiths page 146

    1. The problem statement, all variables and given/known data
    EDIT: sorry I realized I posted this in the wrong forum; someone can move it to the advanced physics forum if you want

    Please stop reading unless you have Griffiths E and M book.

    On that page, Griffiths says "and then the binomial expansion yields" and I am not sure what binomial expansion he is talking about. On the next line how did he get the second approximate equality? How in the world did he get rid of the ( )^(-1/2) operation ?

    2. Relevant equations

    3. The attempt at a solution
    Last edited: Feb 24, 2008
  2. jcsd
  3. Feb 24, 2008 #2
    Never mind. See equation 3.93.
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