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Double integrate from cartesian to polar and then evaluated

  1. Apr 18, 2009 #1
    1. The problem statement, all variables and given/known data
    convert double integral from line one to polar integral and then evaluate
    see problem 12 attachment



    2. Relevant equations
    y=rsinx
    x=rcosx
    r^2=x^2+y^2



    3. The attempt at a solution
    see problem 12 attachment
    I calculate a area of zero. are my limits wrong and if so which ones, or did i make a mistake in the aritmatic, or something else?
     

    Attached Files:

  2. jcsd
  3. Apr 18, 2009 #2

    Tom Mattson

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    Staff Emeritus
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    Gold Member

    You start to go wrong at the end of the 5th line. [itex]e^{-1}[/itex] does not equal [itex]e[/itex].
     
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