My table of Integrals has the overall scenario ##int frac dx x^two+a^2 ## like a 'normal' integral also, not only the situation the place ##a=one##. But I do think this being a Calculus homework issue it is anticipated of your OP to figure out how to make it happen. Hints https://gabletoppak.com/india-emerges-as-the-largest-plastic-polluter-globally/