Class 12 Relations And Functions · Mcq Single Correct1 Markscounting_functions
Class 12 Maths · Relations And Functions · Mcq Single Correct #45
The number of all one-one functions from \(A=\{1,2,3\}\) to itself is
✅ Step-by-Step Solution
Final Answer: Option (B): 6
- A one-one self-map of a finite three-element set is a permutation, so there are \(3!=6\).
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