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Improper integral

  1. May 16, 2017 #1

    yecko

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    Gold Member

    1. The problem statement, all variables and given/known data
    7d4e50778928226bfdc0e51fb64facfb.jpg
    https://holland.pk/uptow/i4/7d4e50778928226bfdc0e51fb64facfb.jpg

    2. Relevant equations
    improper integral

    3. The attempt at a solution
    (attached)
    Whats wrong with my calculation?
    I cannot figure it out after hours...
    Thank you very much!
     
  2. jcsd
  3. May 16, 2017 #2
    In the substitution, it's actually ##\frac{du}{dx}=\frac{1}{2\sqrt{x}}##.
     
  4. May 17, 2017 #3

    yecko

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    Gold Member

    oh yes. thank you
     
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