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Byju's Answer
Standard XII
Mathematics
Property 1
Let I1=∫1-k...
Question
Let
I
1
=
∫
k
1
−
k
x
f
[
x
(
1
−
x
)
]
d
x
,
1
2
=
∫
k
1
−
k
f
[
x
(
1
−
x
)
]
d
x
,
where 2k - 1 > 0. Then
I
1
I
2
is
A
2
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B
k
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C
1
2
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D
less than 1
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Solution
The correct options are
C
1
2
D
less than 1
Using
∫
b
a
f
(
x
)
d
x
=
∫
b
a
f
(
a
+
b
−
x
)
d
x
l
1
=
l
2
−
l
1
∴
2
l
1
=
l
2
hence
l
1
l
2
=
1
2
Suggest Corrections
0
Similar questions
Q.
let
f
be a positive function.
If
I
1
=
∫
k
1
−
k
x
f
[
x
(
1
−
x
)
]
d
x
and
I
2
=
∫
k
1
−
k
f
[
x
(
1
−
x
)
]
d
x
, where
2
k
−
1
>
0
.
Then,
I
1
I
2
is
Q.
Let
f
(
x
)
be a positive function. Let
I
1
=
∫
k
1
−
k
x
f
{
x
(
1
−
x
)
}
d
x
,
I
2
=
∫
k
1
−
k
f
{
x
(
1
−
x
)
}
d
x
,
where
2
k
−
1
>
0
, then
I
1
I
2
is
Q.
Let
f
be a positive function. Let
I
1
=
∫
k
1
−
k
x
f
{
x
(
1
−
x
)
}
d
x
I
2
=
∫
k
1
−
k
f
{
x
(
1
−
x
)
}
d
x
where
2
k
−
1
>
0
. Then
I
1
I
2
Q.
If
I
1
=
∫
1
x
1
1
+
t
2
d
t
and
I
2
=
∫
1
/
x
1
1
1
+
t
2
d
t
for
x
>
0
, then
Q.
Let
f
(
x
)
be an even function &
I
1
=
∫
∞
0
f
(
x
)
d
x
,
I
2
=
∫
∞
0
f
(
3
x
−
1
2
x
)
d
x
,
then the value of
I
1
I
2
is (where
I
1
&
I
2
are finite)
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