Question Number 72986 by mathmax by abdo last updated on 05/Nov/19
$${calculate}\:\:\int_{\mathrm{0}} ^{\infty} \:\:\frac{{e}^{−{x}^{\mathrm{2}} } \:\:{cosx}}{\left({x}^{\mathrm{2}} +{x}+\mathrm{1}\right)^{\mathrm{2}} }{dx} \\ $$
calculate-0-e-x-2-cosx-x-2-x-1-2-dx-