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Homework Help: Inegration with square roots - calc 1

  1. May 3, 2008 #1
    1. The problem statement, all variables and given/known data[/b]
    ∫x/√(x-1)dx

    2. Relevant equations[/b]
    I'm just stumped. I have tried u substituion with
    u=√(x-1)
    x=u^2+1

    ((u^2+1)/u)du
    =(u+1/u)du

    but it doesn't seem to work and I can't integrate 1/u.

    I just don't know where to go with this any help would be greatly appreciated.

    Aimee
     
  2. jcsd
  3. May 3, 2008 #2

    cristo

    User Avatar
    Staff Emeritus
    Science Advisor

    If I were doing this question, I wouldn't make the substitution you made, but would instead use the substitution u=x-1.
     
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