I am trying to evaluate the following integral.(adsbygoogle = window.adsbygoogle || []).push({});

##\displaystyle{\int_{-\infty}^{\infty}f(x,y)\ \exp(-(x^{2}+y^{2})/2\alpha)}\ dx\ dy=1##

How do you do the integral above?

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# I Gaussian integral in two dimensions

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