I am working on an integral I am finding tricky, and I think I'm missing something.(adsbygoogle = window.adsbygoogle || []).push({});

I need to integrate on the interval 0 to infinity, x²e^-x².

We have proved that on the interval of -∞ to ∞, e^-x²=√∏ so from o to ∞, it equals √∏/2. I can use this in my proof, but I don't see how. When I try integrating by parts I have trouble getting a finite answer. I would love some help,

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# Integral of x²e^-x²

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