WBJEE 2022 Math Solved Paper

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Question : 46 of 75

Marks: +1, -0

For the mapping f:C−{1}→C−{2}, given by f(x)=‌

2x

x−1

, which of the following is correct?

f is one-one but not onto
f is onto but not one-one
f is neither one-one nor onto
f is both one-one and onto

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