A) \[\frac{2x{{e}^{y-x}}+2y(x+1)}{x(x{{e}^{y-x}}+2)}\]
B) \[2x{{e}^{x-y}}+2y(x+1)\]
C) \[\frac{2x{{e}^{x-y}}+2y(x+1)}{x(x{{e}^{x-y}}+2)}\]
D) None of these
Correct Answer: A
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