February 10th, 2017, 07:41 AM  #1 
Member Joined: Mar 2016 From: Sweden Posts: 32 Thanks: 4  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!!! 
February 10th, 2017, 06:27 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,397 Thanks: 546 
Draw a picture showing the limits. It looks like it should be a triangle.


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