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  1. I

    Triple Integral

    2\int_{-1}^{{1}}}\int_{-{\sqrt{1-x^2}}}^{{\sqrt{1-x^2}}}\2{\sqrt{1-x^2-y^2}}}\,dy\,dx Supposedly it's easier to make a subtitution u = 1-x^2 at this point but I don't see how...
  2. I

    Triple Integral

    Problem: Evaluate (leave in rectangular coordinates): \int_{-1}^{{1}}}\int_{-{\sqrt{1-x^2}}}^{{\sqrt{1-x^2}}}\int_{-{\sqrt{1-x^2-y^2}}}^{{\sqrt{1-x^2-y^2}}}\ \,dz\,dy\,dx
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