Question Number 194388 by SaRahAli last updated on 05/Jul/23
$$\int\frac{\left(\mathrm{1}+{x}^{\mathrm{2}} \right)\mathrm{sin}\:{x}+\mathrm{4cos}\:{x}}{\mathrm{2}\left(\mathrm{1}+{x}^{\mathrm{2}} \right)^{\mathrm{3}} }\:{dx} \\ $$
1-x-2-sin-x-4cos-x-2-1-x-2-3-dx-