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Probability Density Function

  1. Aug 9, 2008 #1
    I feel embarassed for asking, but is there a fast way to calculate this without using integration by parts?

    [tex]\int[/tex] 2e^(-2x)x^-1dx, 0 <= x < infinity

    There's supposed to be some kind of trick, right?
     
  2. jcsd
  3. Aug 9, 2008 #2

    gel

    User Avatar

    [tex]
    \int_0^\infty\frac{2e^{-2x}}{x}\,dx=\infty.
    [/tex]
     
  4. Aug 10, 2008 #3
    Sorry but how is this related to PDFs?
     
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