Q25. If A={a,b} ,B={2,3,4} then how many
relations defined from A to B
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Answer:
64 relations.
Step-by-step explanation:
No.of elements in A, n(A)=2
No.of elements in B, n(B)=3
The formula for number of relations: 2ᵃᵇ
where a is n(A) and b is n(B).
No. of relations= 2ᵃᵇ
a*b=2×3 = 6
∴No. of relations= 2⁶
= 64
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No of relation is 6*3
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