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Byju's Answer
Standard XII
Mathematics
Definition of Functions
What is the r...
Question
What is the range of the function
f
(
x
)
=
|
x
−
1
|
x
−
1
?
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Solution
f
(
x
)
=
|
x
−
1
|
x
−
1
For
x
<
1
:
For
x
<
1
,
|
x
−
1
|
could be written as
−
(
x
−
1
)
. Then,
⇒
f
(
x
)
=
−
(
x
−
1
)
x
−
1
=
−
1
For
x
>
1
:
For
x
>
1
,
|
x
−
1
|
could be written as
(
x
−
1
)
. Then,
⇒
f
(
x
)
=
(
x
−
1
)
x
−
1
=
1
Hence, range of the function
=
{
−
1
,
1
}
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