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Question

If A={x:x25x+6=0}, B={2,4}, C={4,5} then A×(BC)

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

The correct option is A {(2,4),(3,4)}
x25x+6=0(x2)(x3)=0; x=2,3

BC={4};A={2,3}

A×(BC)={2,3}×{4}

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

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