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AP EAMCET Engineering 2014 Code A Solved Paper
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© examsnet.com
Question : 2
Total: 160
Let Q be the set of all rational numbers in [0,1] and
f
:
[
0
,
1
]
→
[
0
,
1
]
be defined by
f
(
x
)
=
{
x
f
o
r
x
∊
Q
1
−
x
f
o
r
x
∉
Q
•
Then the set
S
=
{
x
∊
[
0
,
1
]
(
f
o
f
)
(
x
)
=
x
}
is equal to
Q
[
0
,
1
]
−
Q
(
0
,
1
)
[
0
,
1
]
Validate
Solution:
f
=
f
−
1
© examsnet.com
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