indefinite-integration

Question: $\int_{{}}^{{}}{{{e}^{x}}\frac{({{x}^{2}}+1)}{{{(x+1)}^{2}}}dx=}$

1) $\left( \frac{x-1}{x+1} \right){{e}^{x}}+c$

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

3) ${{e}^{x}}(x+1)(x-1)+c$

4) None of these

Solution:

Explanation: No Explanation

Integration by parts

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