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The range of the function f(x)=(x^(2)+x+...

The range of the function `f(x)=(x^(2)+x+2)/(x^(2)+x+1), x in R` , is

A

`(1, oo)`

B

`(1, 11//7)`

C

`(1, 7/3]`

D

`(1, 7//5)`

Text Solution

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The correct Answer is:
C
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