Question Number 27083 by hp killer last updated on 01/Jan/18
$$\int\mathrm{3}{x}^{\mathrm{2}} /{x}^{\mathrm{6}} +\mathrm{1} \\ $$$$ \\ $$
Answered by mrW1 last updated on 01/Jan/18
$$\int\frac{\mathrm{3}{x}^{\mathrm{2}} }{{x}^{\mathrm{6}} +\mathrm{1}}{dx} \\ $$$$=\int\frac{\mathrm{1}}{\left({x}^{\mathrm{3}} \right)^{\mathrm{2}} +\mathrm{1}}{dx}^{\mathrm{3}} \\ $$$$=\mathrm{tan}^{−\mathrm{1}} {x}^{\mathrm{3}} +{C} \\ $$