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Prove that |(12x)/(4x^2+9)|le1 for all r...

Prove that `|(12x)/(4x^2+9)|le1` for all real values of x the equality being satisfied only if `|x|=3/2`

A

`(3)/(2)`

B

`(2)/(3)`

C

`(1)/(3)`

D

`(1)/(2)`

Text Solution

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The correct Answer is:
(a)
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