Let f: A \rightarrow B be a function defined as f(x)=\frac{x-1}{x-2}, where A=R-\{2\} and B=R-\{1\}. Then f is :- [15 Apr 2018 Shift 2]

Correct Answer is : Not invertible

Invertible and f^{-1}(y)=\frac{2 y-1}{y-1}

Invertible and f^{-1}(y)=\frac{3 y-1}{y-1}

Invertible and f^{-1}(y)=\frac{2 y+1}{y-1}

JEE Main 15 Apr 2018 Shift 2 Solved Paper

Section: Mathematics

Question : 73 of 90

Marks: +1, -0

Let f:A⟶B be a function defined as f(x)=‌

x−1

x−2

, where A=R−{2} and B=R−{1}. Then f is :-

[15 Apr 2018 Shift 2]

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