My table of Integrals has the final circumstance ##int frac dx x^2+a^two ## as being a 'normal' integral too, not simply the situation where by ##a=one##. But I feel this getting a Calculus research trouble it is expected of the OP to figure out how to get it done. Hints https://gabletoppak.com/kerala-high-court-says-not-to-use-plastic-bottles-at-weddings-in-state/