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The least value of a in RR " for which ...

The least value of `a in RR " for which " 4ax^(2)+(1)/(x)ge1 " for all" xgt0` , is

A

`(1)/(64)`

B

`(1)/(32)`

C

`(1)/(27)`

D

`(1)/(25)`

Text Solution

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The correct Answer is:
C
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