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February 10th, 2017, 07:41 AM   #1
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Double integral

I have the following problem
$∫∫_De^{(x+y)^2} dxdy$
where $D$ is $y≤3 x, x≤3 y, 0≤x+y≤2$.

Is there anyone that wants to give me some hint on where to start?

Thxx!!!
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February 10th, 2017, 06:27 PM   #2
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Draw a picture showing the limits. It looks like it should be a triangle.
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