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Byju's Answer
Other
Quantitative Aptitude
Functions
f 0 x =1/1+ x...
Question
f
0
(
x
)
=
1
1
+
x
if x > 0,
f
0
(
x
)
=
1
+
x
if x
≤
0. Also given that
f
n
(
x
)
=
f
0
(
f
n
−
1
(
x
)
)
.
If x=1, find
f
1
(
x
)
f
2
(
x
)
f
3
(
x
)
⋯
f
6
(
x
)
.
A
1
6
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B
1
17
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C
1
18
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D
1
9
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Solution
The correct option is
B
1
17
Option (b) is the correct answer
. Check the video for the approach.
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0
Similar questions
Q.
If
f
0
(
x
)
=
x
(
x
+
1
)
and
f
n
+
1
=
f
0
∘
f
n
(
x
)
for
n
=
0
,
1
,
2
,
⋯
then
f
n
(
x
)
is
Q.
Define a sequence
⟨
f
0
(
x
)
,
f
1
(
x
)
,
f
2
(
x
)
,
…
⟩
of functions by
f
0
(
x
)
=
1
,
f
1
(
x
)
=
x
,
(
f
n
(
x
)
)
2
−
1
=
f
n
+
1
(
x
)
f
n
−
1
(
x
)
, for
n
≥
1
.
Prove that each
f
n
(
x
)
is a polynomial with integer coefficients.
Q.
For
x
∈
R
,
x
≠
0
,
x
≠
1
, let
f
0
(
x
)
=
1
1
−
x
and
f
n
+
1
(
x
)
=
f
0
(
f
n
(
x
)
)
,
n
=
0
,
1
,
2
,
.
.
.
.
Then the value of
f
100
(
3
)
+
f
1
(
2
3
)
+
f
2
(
3
2
)
is equal to:
Q.
If
f
n
−
1
(
x
)
=
ln
(
f
n
(
x
)
)
∀
n
∈
N
and
f
0
(
x
)
=
x
−
1
, then
d
d
x
(
f
n
(
x
)
)
is
Q.
If
f
(
x
)
=
{
x
+
1
,
i
f
x
≤
1
5
−
x
2
i
f
x
>
1
,
g
(
x
)
=
{
x
i
f
x
≤
1
2
−
x
i
f
x
>
1
Number of negative integral solutions of
g
(
f
(
x
)
)
+
2
=
0
are
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