My Table of Integrals has the overall circumstance ##int frac dx x^2+a^two ## like a 'typical' integral as well, not simply the situation wherever ##a=one##. But I do think this becoming a Calculus homework trouble it is expected from the OP to figure out how to get it done. Hints https://gabletoppak.com/best-alternatives-to-plastic-water-bottles-in-kerala-for-a-greener-future/