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Dx dy where R is the unit circle.

  1. Aug 4, 2009 #1
    Given the double integral [tex]\int\int_R[/tex] [tex]\sqrt{}x^2+y^2[/tex] dx dy where R is the unit circle.
    We are only given the equation for the unit circle but don't we need more equations so I can change the equations to a single variable and then find the Jacobian so how do I find the Jacobian.
    How do I find a point interior to R at which the Jacobian vanishes.
     
  2. jcsd
  3. Aug 4, 2009 #2

    nicksauce

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