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The solution set of x^(2) + 2 le 3x le 2...

The solution set of `x^(2) + 2 le 3x le 2x^(2)-5`, is

A

`phi`

B

[1,2]

C

`(- infty, - 1] cup [ (5)/(2) , + infty) `

D

None of these

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The correct Answer is:
A
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