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Question

If x22x+log12p=0 does not have two distinct real roots, then the maximum value of p is

A
2
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B
1
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C
14
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D
12
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Solution

The correct option is D 12
x22x+log12p=0
It does not have two distinct real roots means
It can have either equal real roots or imaginary roots.
So,
D0
44log12p04+4log2p0log2p1p21p12

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