defence exam BSF Head Constable (RO/RM) Mock Test 2023 Mathematics Integral Calculus Indefinite Integrals
\(\rm\displaystyle\int e^x\left(\frac{1−x}{1+x^2}\right)^2\) dx is equal to
1
\(\rm\frac{e^x}{1+x^2}\) + C
2
\(\rm\frac{−e^x}{1+x^2}\) + C
3
\(\rm\frac{e^x}{\left(1+x^2\right)^2}\) + C
4
\(\rm\frac{−e^x}{\left(1+x^2\right)^2}\) + C