Question

Let A={1,2,3,4}, B={2,3,4,5} then n{(A×B)∩(B×A)} is ​

Answer 1

Answer:

(1,2),(1,3),(1,4),(1,5)

Answer 2

Step-by-step explanation:

A = {1,2,3,4}, B = {2,3,4,5}

(AxB) = {(1,2),(1,3),(1,4),(1,5),(2,2),(2,3),(2,4),(2,5),(3,2),(3,3),(3,4),(3,5),(4,2),(4,3),(4,4),(4,5)}

(BxA) = {(2,1),(2,2),(2,3),(2,4),(3,1),(3,2),(3,3),(3,4),(4,1),(4,2),(4,3),(4,4),(5,1),(5,2),(5,3),(5,4)}

{(AxB) intersection (BxA)} = {(2,2),(2,3),(2,4),(3,2),(3,3),(4,2),(4,3),(4,4)}

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