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Rational Integration

  1. Jul 9, 2007 #1
    1. The problem statement, all variables and given/known data
    Integrate (dx)/(-4 + x^2)


    2. Relevant equations

    Trig substitution?????

    3. The attempt at a solution

    How would you integrate something like this? I don't need answers, I just need some guidelines to start off.
     
  2. jcsd
  3. Jul 9, 2007 #2

    mjsd

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    Homework Helper

    note: (x^2-4) = (x-2)(x+2)
    then partial factions
     
  4. Jul 9, 2007 #3
    (Hits head)

    Engineering makes you forget the basic methods of integration.

    Thanks.
     
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