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Question

Integral real values of x satisfying log1/2(x26x+12)2 is

A
2
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B
3
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C
4
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D
none of these
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Solution

The correct option is C none of these
log1/2(x26x+12)2
x26x+12(1/2)2=1/4
4x224x+470
Discriminant of above quadratic is, D=24216×47=176<0
Hence given inequality is not possible for any xR

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