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Question

The set of all values of x satisfying xlogx(1x)2=9 is

A
A subset of R containing N
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B
A subset of R containing Z (set of all integers).
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C
Is a finite set containing at least 2 elements.
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D
A finite set.
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Solution

The correct option is D A finite set.
xlogx(1x)2=91x0x1Also, x>0xlogx(1x)2=9(1x)2=91x=±3x=4 or x=2x=4

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