Question Number 138972 by mathmax by abdo last updated on 20/Apr/21
$$\mathrm{calculate}\:\int_{−\infty} ^{+\infty} \:\:\:\frac{\mathrm{cos}^{\mathrm{2}} \left(\mathrm{x}\right)}{\left(\mathrm{x}^{\mathrm{2}} −\mathrm{x}+\mathrm{2}\right)^{\mathrm{2}} }\mathrm{dx} \\ $$