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Standard XII
Mathematics
Definition of Functions
Question
The range of
f
(
x
)
=
x
2
−
9
x
−
3
is
R
−
{
9
}
(
−
∞
,
6
)
∪
(
6
,
∞
)
(
0
,
∞
)
(
−
∞
,
∞
)
A
(
0
,
∞
)
B
(
−
∞
,
∞
)
C
(
−
∞
,
6
)
∪
(
6
,
∞
)
D
R
−
{
9
}
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Solution
Verified by Toppr
f
(
x
)
=
x
2
−
9
x
−
3
x
−
3
≠
0
x
≠
3
f
(
x
)
=
x
+
3
,
x
≠
3
Range of
f
(
x
)
is
(
−
∞
,
∞
)
−
6
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