WBJEE 2015 Math Solved Paper

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Question : 43 of 80

Marks: +1, -0

Let f : R → R be defined as f(x) =

x2−x+4

x2+x+4

. Then the range of the function f (x) is

[
3
5
,
5
3
]
(
3
5
,
5
3
)
(−∞,
3
5
) ∪ (
5
3
,∞)
[−
5
3
,−
3
5
]

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