My Table of Integrals has the final scenario ##int frac dx x^2+a^two ## as being a 'regular' integral far too, not simply the situation exactly where ##a=1##. But I feel this remaining a Calculus research challenge it is anticipated in the OP to figure out how to make it happen. https://gabletoppak.com/customized-packaged-drinking-water-with-your-brand-logo/