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Definite integral

  1. Feb 3, 2009 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Feb 3, 2009 #2


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    Welcome to PF nameVoid.
    Let's start by finding an anti-derivative (primitive)... you need something which will give you
    [tex]\sqrt{x - 2} = (x - 2)^{1/2}[/tex]
    when you differentiate it... can you make a wild guess?
  4. Feb 3, 2009 #3
    using the definition [​IMG]


    im not clear on how to expand the expression to distribute the sum
  5. Feb 3, 2009 #4


    Staff: Mentor

    Look at CompuChip's post again. He's not asking you to use the definition of the definite integral, but rather asking you if you can think of a function whose derivative is sqrt(x - 2).

    IOW, d/dx(____) = (x - 2)^(1/2).
    Can you fill in the blank?
  6. Feb 3, 2009 #5
    Why don't you just do a subst. u = x - 2?
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