A) \[x=\frac{\sqrt{5}+\sqrt{3}}{\sqrt{5}-\sqrt{3}}\]
B) \[{{x}^{3}}+\frac{1}{{{x}^{3}}}\]
C) \[3x-2=\frac{8}{x}.\]
D) \[\left( -\frac{3}{4},2 \right)\]
Correct Answer: A
Solution :
Let f(x, y) must be added to find the required result, then \[\frac{x}{y}+f(x,y)=\frac{y}{x}\]\[-1\]\[f(x,y)=\frac{y}{x}-\frac{x}{y}=\frac{{{y}^{2}}-{{x}^{2}}}{yx}\]
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