1.

If \[{{x}^{y}}={{y}^{x}},\]find the value of \[{{\left( \frac{x}{y} \right)}^{\frac{x}{y}}}\].

A.  \[{{x}^{\frac{x}{y}}}\]                                   
B.  \[{{x}^{\frac{x}{y}-1}}\]               
C.  \[{{x}^{\frac{y}{x}}}\]                   
D.         \[{{x}^{\frac{y}{x}-1}}\]
Answer» C.  \[{{x}^{\frac{y}{x}}}\]                   


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