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Hints for Integrating sqrt(1 +a^2*x^2)dx

  1. Dec 19, 2007 #1
    Integrate

    sqrt(1 +a^2*x^2) dx

    Thanks
     
  2. jcsd
  3. Dec 19, 2007 #2

    Hootenanny

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    How about a hyperbolic trig substitution, say;

    [tex]ax = \sinh(u)[/tex]
     
    Last edited: Dec 19, 2007
  4. Dec 19, 2007 #3
    Cheers
     
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