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Homework Help: Simplify function

  1. Sep 27, 2010 #1
    1. The problem statement, all variables and given/known data

    Started at (x * x/sqrt(1+x^2))/sqrt(1+x^2)-1

    2. Relevant equations

    3. The attempt at a solution

    now im at

    (x^2 (1 + x)^(1/2) - x^2)/(1 + x)^(1/2)

    I am stuck on how to simplify further
  2. jcsd
  3. Sep 28, 2010 #2
    Your simplification looks wrong, unless I'm reading the problem incorrectly.

    (x * x / sqrt(1+x^2)) / sqrt(1+x^2)-1
    x^2 * (1+x^2)^-1/2 * (1+x^2)^1/2
    Can you go on from there?
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