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-- Mathematics - Section B2
Calculus
$∫e^x\left(\frac{1-x}{1+x^2}\right)^2 $ is equal to
$\frac{e^x}{1+x^2}+C$
$\frac{-e^x}{1+x^2}+C$
$\frac{e^x}{(1+x^2)^2}+C$
$\frac{-e^x}{(1+x^2)^2}+C$