Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The number of relations, defined on the set
, which are both reflexive and symmetric, is equal to:
Text Solution
Verified by ExpertsThe correct answer is:
C
For a set with
elements, reflexive condition requires all diagonal pairs
to be included.
For symmetric relations, non-diagonal pairs come in symmetric pairs. Number of such pairs
.
For each pair, we either include both elements or exclude both
choices each.
Total reflexive and symmetric relations
.
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