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Class 12 Relations And Functions · Assertion Reason1 Markstypes_of_functions

Class 12 Maths · Relations And Functions · Assertion Reason #151

Assertion: The number of onto self-maps of \(\{1,2,3,4,5\}\) is 5!. Reason: The number of onto self-maps of any n-element set is n!.

✅ Step-by-Step Solution

Final Answer: Option (A): Both A and R are true, and R correctly explains A.
  1. An onto map between finite equal-sized sets is bijective; self-bijections are the n! permutations.

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