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use spherical coordinates to evaluate the triple integral of

(e^-(x^2+y^2+z^2))/(sqrt(x^2+y^2+z^2)dV
where E is the region bounded by the spheres
x^2+y^2+z^2=49 and
x^2+y^2+z^2=81???

  • math -

    Integrate

    exp(-r^2)/r 4 pi r^2 dr from r = 7 to r = 9

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