Hello everyone, I have the this inquiry:(adsbygoogle = window.adsbygoogle || []).push({});

if I compute de following integral:

http://micurso.orgfree.com/Picture1.jpg

by numerical methods I get cero as a result. I used Maxima and Mathematica and their functions for numerical integration give me an answer equal to cero.

But, if I apply transformation with spherical coordinates the result turns out to be equal to pi^2 / 40.

I can't seem to find an explanation for this. Could any of you guys give me a hand with this? Thank you in advance.

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# I Why this triple integral equals zero?

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