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TS EAMCET 2016 Code A Solved Paper
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Section:
Mathematics
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© examsnet.com
Question : 1
Total: 160
If
f
(
x
)
=
x
2
−
2
x
+
4
then the set of values of x satisfying
f
(
x
−
1
)
=
f
(
x
+
1
)
is
{
−
1
}
{
−
1
,
1
}
{
1
}
{
1
,
2
}
Validate
Solution:
f
(
x
−
1
)
=
f
(
x
+
1
)
(
x
−
1
)
2
−
2
(
x
−
1
)
+
4
=
(
x
+
1
)
2
−
2
(
x
+
1
)
+
4
−
4
x
+
7
=
3
−
4
x
=
−
4
x
=
1
© examsnet.com
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