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Question
Let A = {3, 5}. Then number of reflexive relations on A is ______.
Options
2
4
0
8
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Solution
Let A = {3, 5}. Then number of reflexive relations on A is 4.
Explanation:
Reflexive relation A to A.
`2^(n^2 - n) = 2^(4 - 2)` = 22 = 4.
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