Let f:R to R be defined as f (x) =( 9x ^...

Let `f:R to R` be defined as `f (x) =( 9x ^(2) -x +4)/( x ^(2) _ x+4).` Then the range of the function f (x) is

A

1) `[(3)/(5), (5)/(3)]`

B

2) ` ((3)/(5), (5)/(3))`

C

3) ` (-oo, (3)/(5)) uu ((5)/(3), oo)`

D

4) none of these

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The correct Answer is:

A

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