A) \[f(x)=\frac{1}{x-1}\]
B) \[f(x)={{x}^{2}}\] for all\[x\]
C) \[f(x)={{x}^{2}}\], \[x\ge 0\]
D) \[f(x)={{x}^{2}},\ x\le 0\]
Correct Answer: A
Solution :
For finding inverse of any function, function should be bijective. Since \[f(x)=\frac{1}{x-1}\] is bijective function.
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