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Y^2 constant integration

  1. Apr 15, 2010 #1
    Hi,

    Please help me on this. I do not how to start on this integration, so i simply apply basic integration rule. Usually, there is a formulas sheet for me to convert this alike question to trigo form(after integrate) but this one seem different.

    edited: y^2 is const

    3. The attempt at a solution
    fea.GIF

    Thanks
     
    Last edited: Apr 15, 2010
  2. jcsd
  3. Apr 15, 2010 #2

    Cyosis

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    Re: Integration

    Use the substitution u=x^2+y^2.
     
    Last edited: Apr 15, 2010
  4. Apr 15, 2010 #3
    Re: Integration

    sorry there is an edit.
     
  5. Apr 15, 2010 #4

    Cyosis

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    Re: Integration

    It was already clear that y is a constant. Post 2 still holds.
     
  6. Apr 15, 2010 #5
    Re: Integration

    I think i got it. Thanks for the hint. I guess I really need more practice.

    fea.GIF
     
  7. Apr 15, 2010 #6

    Cyosis

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    Re: Integration

    Correct.
     
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