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How do i integrate this

  1. Jul 26, 2009 #1
    f(x)=40*e^(-0.5x)
     
  2. jcsd
  3. Jul 26, 2009 #2
    If anyone could help my figure it out i would really appreciate it. Thanks
     
  4. Jul 26, 2009 #3

    tiny-tim

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    Welcome to PF!

    Hi chevy900ss! Welcome to PF! :smile:

    (try using the X2 tag just above the Reply box :wink:)

    (btw, really bad idea to answer your own thread … people are much more likely to reply to unanswered threads!)

    Hint: what do you get if you differentiate e-0.5x ? :smile:
     
  5. Jul 26, 2009 #4

    HallsofIvy

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    If you cannot answer tiny-tim's question, in general, you can integrate eax by making the substitution u= ax so du= adx, (1/a)du= dx.
     
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