differentiation

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

1) $\frac{{{e^x}(1 + x)}}{{{{(1 + {x^2})}^2}}}$

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

3) $\frac{{{e^x}{{(1 + x)}^2}}}{{(1 + {x^2})}}$

4) $\frac{{{e^x}{{(1 - x)}^2}}}{{(1 + {x^2})}}$

Solution:

Explanation: Explanation

standard-differentiation

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