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Range of the function f(x)=(x^(2)+x+2)/(...

Range of the function `f(x)=(x^(2)+x+2)/(x^(2)+x+1),x inR` is :

A

`R-(-(1)/(2), 1)`

B

`R`

C

`R-(1)`

D

none of these

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The correct Answer is:
A
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