CUET Mathematics 2022 23 Aug Shift 1 PYQs

$\int e^x \left(\frac{1-x}{1+x^2}\right)^2 dx =$

$\int \frac{x^2+1}{(x+1)^2} e^x \, dx$ is equal to

$\int \frac{xe^x}{(x+1)^2} dx =$