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Question

If A = {x: x2 - 5x + 6 = 0}, B = {2,4} , C = {4,5}, then

A×(B C) is


A

{(2, 4), (3, 4)}

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B

{(4, 2), (4, 3)}

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C

{(2, 4), (3, 4), (4, 4)}

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D

{(2,2), (3,3), (4,4), (5,5)}

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Solution

The correct option is A

{(2, 4), (3, 4)}


Clearly, A = {2,3} , B = {2,4}, C = {4,5}

BC = {4}

A × (B C) = {(2,4); (3,4)}.


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