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Question

The set A={x:xx2=16and2x=6} equals:

A
ϕ
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B
{14,3,4}
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C
{3}
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D
{4}
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Solution

The correct option is A ϕ
Since, x2=16x=±4
and 2x=6x=3
Hence, no value of x is satisfied.
A=ϕ

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