Which of the following function is inverse function [AMU 2000]

\[f(x)={{x}^{2}}\] for all\[x\]

Which of the following function is inverse function

1.	Which of the following function is inverse function [AMU 2000]
A.	\[f(x)=\frac{1}{x-1}\]
B.	\[f(x)={{x}^{2}}\] for all\[x\]
C.	\[f(x)={{x}^{2}}\], \[x\ge 0\]
D.	\[f(x)={{x}^{2}},\ x\le 0\]
Answer» B. \[f(x)={{x}^{2}}\] for all\[x\]

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Which of the following function is inverse function [AMU 2000]

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