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Homework Help: How to integrate this?

  1. Jan 15, 2017 #1
    1. The problem statement, all variables and given/known data
    Hello people
    How would one integrate a function in the form of
    ∫ ydx/(x2 + y2)3/2

    2. Relevant equations
    I don't really know how to go about it
    3. The attempt at a solution
    I tried solving it by substitution but I can't find a suitable one...
    any online tutorials for such an integral would be amazing!!!
    Thank you
  2. jcsd
  3. Jan 15, 2017 #2


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    Hello. What substitutions did you try ?
  4. Jan 15, 2017 #3
    I tried anything with x but that won't work, I checked it online I believe I have to try x = ytanθ... right?
    and would it be a double substitution because we have function that the denominator is to the power of 3/2
  5. Jan 15, 2017 #4

    Ray Vickson

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    If you think you need to substitute ##x = y \tan(\theta)##, then just go ahead and try it for yourself to see what you get.
  6. Jan 15, 2017 #5
    Thank you, I found a solution
    all is good
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