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Question

Let A={x;xR,x2} and B={x:xR,x<4} Then AB=

A
{x:xR,2<x<4}
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B
{x:xR,2x<4}
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C
B
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D
None of these
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Solution

The correct option is B {x:xR,2x<4}
AB={x:xR,x2andx<4}={x:xR,2x<4}

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