Consider the double integral(adsbygoogle = window.adsbygoogle || []).push({});

[tex]

\int_{-\infty}^{\infty}dx f(x) \, \int_{-\infty}^{\infty}dy g(y)

[/tex]

The first one gives 0 the second one gives infinity (diverges). Then how to express the result of the integral? Is it 0 or infinity or neither (indeterminate)? Any other comments about the integration?

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# What is the result of this double integral?

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