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Homework Help: Integral with exponential function

  1. May 26, 2010 #1
    Hi everyone,
    here is this integral I can't find solution:

    \int_0^\infty \frac{x e^{-x}}{A+Bx} dx

    A and B are constants.

    I'm going crazy, I don't think there is even an analytical solution.
  2. jcsd
  3. May 26, 2010 #2

    Char. Limit

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