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Improper Integrals

  1. Oct 8, 2007 #1
    I have tried to work this problem, but I keep getting the wrong answer. Please help...

    Evaluate the integral from 2 to infinity of 2/(v^2-v). I cannot use a calculator and the answers that I get are nonsensical. PLEASE HELP!!!!
  2. jcsd
  3. Oct 8, 2007 #2
    could you show your work?

    i seems like you need to first setup the integral into the limit, and then the do the integral. It seems like a partial fractions. and then do the limits (easiest one first maybe it diverges? xD).
  4. Oct 8, 2007 #3

    Looks pretty straight forward. Do you know how to do partial fractions?


    [tex]\frac{1}{v(v-1)} = \frac{A}{v}+\frac{B}{v-1}[/tex]

    Solve for A and B. Rewrite the integral and you should get log or something. I think.
    Last edited: Oct 8, 2007
  5. Oct 9, 2007 #4
    Thank you very, very much!
  6. Oct 11, 2007 #5
    Does anyone know who invented the integral calculus?
  7. Oct 11, 2007 #6
    It was Leibniz, Newton was a fraud!
  8. Oct 11, 2007 #7


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    Very useful comments there Kepler.
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