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Math Help - Double Integral

  1. #1
    Junior Member
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    Double Integral

    Calculate the double integral:

    x/(x^2 + y^2)dA, R = [1,2] x [0,1].

    I'm not sure how to iterate this integral and proceed onwards. Any ideas?

    Thanks in advance.
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  2. #2
    Math Engineering Student
    Krizalid's Avatar
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    This is quite straightforward, it's just \int_{0}^{1}{\int_{1}^{2}{\frac{x}{{{x}^{2}}+{{y}^  {2}}}\,dx}\,dy}.

    The inner integral is easy to solve and the remaining integral can be tackled by simple partial integration. (See my signature.)
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