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Eek! Integrals are ruining my life.

  1. Sep 17, 2006 #1
    Hey I have a test soon and need help on two problems, please!!

    first is taking the integral of (e^(x)^1/2)/(x)^(1/2) dx



    second is taking the integral of 2/(x^2+4x+8) dx


    thanks for any help!
     
  2. jcsd
  3. Sep 17, 2006 #2
    You have to at least show you attempted the problem(s) or the smart people won't want to help.
     
  4. Sep 17, 2006 #3
    For the 1st one i am not sure where to start...




    for the second one, i tried using partial fractions but i could not factor it
     
  5. Sep 17, 2006 #4

    shmoe

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    When in doubt, try a substitution.


    It has no real roots. Try completing the square and remember arctan.
     
  6. Sep 18, 2006 #5

    dextercioby

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    Hint for the first

    [tex] 2 \frac{d}{dx} e^{\sqrt{x}} =\frac{e^{\sqrt{x}}}{\sqrt{x}} [/tex]

    Daniel.
     
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