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Byju's Answer
Standard XII
Mathematics
Sum of Coefficients of All Terms
n+1C1+n+1C2+n...
Question
(
n
+
1
)
C
1
+
(
n
+
1
)
C
2
+
(
n
+
1
)
C
3
+
…
.
.
+
(
n
+
1
)
C
n
=
A
2
(
2
n
+
1
)
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B
2
(
2
n
−
1
)
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C
2
n
+
1
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D
(
2
n
+
1
−
1
)
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Solution
The correct option is
B
2
(
2
n
−
1
)
As in the hint required expression
+
n
+
1
C
0
+
n
+
1
C
n
+
1
=
2
n
+
1
=> required. expression
=
2
n
+
1
−
2
=
2
(
2
n
−
1
)
Suggest Corrections
0
Similar questions
Q.
c
0
,
c
1
,
c
2
denotes coefficents expansion of
(
1
+
x
)
n
, then
c
1
+
c
1
c
2
+
c
2
c
3
+
.
.
.
.
.
.
.
c
n
−
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c
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=
(
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!
(
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+
1
)
!
(
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!
Q.
If
(
1
+
x
)
n
=
C
0
+
C
1
x
+
C
2
x
2
+
…
+
C
n
x
n
,
then
the value of
∑
∑
0
≤
r
<
s
≤
n
(
r
+
s
)
C
r
C
s
is
Q.
Prove that
C
0
+
C
1
2
+
C
2
3
+
C
3
4
+
.
.
.
.
+
C
n
n
+
1
=
2
n
+
1
−
1
(
n
+
1
)
Q.
If
S
n
=
1
+
q
+
q
2
+
q
3
+
.
.
.
+
q
n
and
S
′
n
=
1
+
(
q
+
1
2
)
+
(
q
+
1
2
)
2
+
.
.
.
+
(
q
+
1
2
)
n
,
q
≠
1
then
n
+
1
C
1
+
n
+
1
C
2
.
S
1
+
n
+
1
C
3
.
S
2
+
.
.
.
+
n
+
1
C
n
+
1
.
S
n
=
Q.
The value of
lim
n
→
∞
(
n
(
n
+
1
)
√
2
n
+
1
+
n
(
n
+
2
)
√
2
(
2
n
+
2
)
+
n
(
n
+
3
)
√
3
(
2
n
+
3
)
.
.
.
.
.
+
1
2
n
√
3
)
is
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