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

Range of the function `f (x)= sqrt(x ^(2) + x +1)` is equal to

A

1) `[0,oo]`

B

2) `[(sqrt3)/(2), oo)`

C

3) `((-sqrt3)/(2),(sqrt3)/(2))`

D

4) `(0,0)`

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The correct Answer is:

B

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