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Homework Help: Calc 3 Double Integration

  1. Mar 15, 2014 #1
    1. The problem statement, all variables and given/known data

    Attached below

    2. Relevant equations

    3. The attempt at a solution

    So I cannot figure this out. Would this be integration by parts? or by substitution.. It provides me with an answer but no reasoning behind it and I cannot figure it out =/

    Attached Files:

  2. jcsd
  3. Mar 15, 2014 #2

    Ray Vickson

    User Avatar
    Science Advisor
    Homework Helper

    PF rules require you to show your work. What have you tried so far?
  4. Mar 15, 2014 #3
    I had done so much work I didnt wanna type it and was going to upload a picture, But indeed I figured it out.. Using U sub with U = xy^2 du = 2xy and x was a constant so it was factored out leaving everything peachy!
  5. Mar 15, 2014 #4


    Staff: Mentor

    You don't have to show us all your work - just give us some indication that you have done something.
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