For a set A ={1, 2, 3}, the following fu

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Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Relations and Functions

Question:

For a set A ={1, 2, 3}, the following functions are defined from A to A. Which of these functions has an inverse ?

Options:

$f_1$= {(1, 1), (2, 2), (3, 3)}

$f_2$= {(1, 1), (1, 2), (3, 3)}

$f_1$= {(1, 2), (2, 3), (3, 2)}

$f_1$= {(1, 3), (2, 3), (3, 1)}

Correct Answer:

$f_1$= {(1, 1), (2, 2), (3, 3)}