if A={1,2,3,4,5}and B={1,3,9,12}then A^B
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nice question but I don't know sorry
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sorry
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Answer:
A={1,2,3,4} and B={1,5,9,11,15,16}
∴A×B={(1,1),(1,5),(1,9),(1,11),(1,15),(1,16),(2,1),(2,5),(2,9),(2,11),(2,15),(2,16),
(3,1),(3,5),(3,9),(3,11),(3,15),(3,16),(4,1),(4,5),(4,9),(4,11),(4,15),(4,16)}
It is given that f={(1,5),(2,9),(3,1),(4,5),(2,11)}
(i) A relation from a non-empty set A to a non-empty set B is a subset of the Cartesian product A×B
It is observed that f is a subset of A×B
Thus f is a relation from A to B.
(ii) Since the element 2 corresponds to two different images i.e., 9 and 11. So, relation f is not a function
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