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If x in R and 1 le ((3x^(2)-7x+8)/(x^(2)...

If x `in` R and `1 le ((3x^(2)-7x+8)/(x^(2)+1))le 2` then the minimum and maximum values of x are respectively

A

`1,2`

B

`5,12`

C

`6,10`

D

`1,6`

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The correct Answer is:
D
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