Question Number 69784 by mathmax by abdo last updated on 27/Sep/19
$${calculate}\:{f}\left({a}\right)\:=\int_{\mathrm{0}} ^{\infty} \:\:{e}^{−\left({x}^{\mathrm{2}} \:+\frac{{a}}{{x}^{\mathrm{2}} }\right)} {dx}\:\:{with}\:{a}>\mathrm{0} \\ $$
calculate-f-a-0-e-x-2-a-x-2-dx-with-a-gt-0-