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CBSE Questions for Class 11 Engineering Maths Binomial Theorem Quiz 14 - MCQExams.com
CBSE
Class 11 Engineering Maths
Binomial Theorem
Quiz 14
The coefficient of
x
4
x
4
in the expansion of
(
1
+
x
+
x
2
+
x
3
)
11
(
1
+
x
+
x
2
+
x
3
)
11
is
Report Question
0%
900
900
0%
909
909
0%
990
990
0%
999
999
In the expansion of
(
x
2
+
1
+
1
x
2
)
n
(
x
2
+
1
+
1
x
2
)
n
,
n
∈
N
n
∈
N
, then
Report Question
0%
number of terms= 2n+1
0%
term independent of x=
2
n
−
1
2
n
−
1
0%
coefficient of
x
2
n
−
2
x
2
n
−
2
= n
0%
coefficient of
x
2
x
2
= n
The coefficient of
t
50
t
50
in
(
1
+
t
)
41
(
1
−
t
+
t
2
)
40
(
1
+
t
)
41
(
1
−
t
+
t
2
)
40
is equal to
Report Question
0%
1
0%
50
0%
81
0%
0
If the coefficients of second, third and fourth terms in the expansion of
(
1
+
x
)
n
(
1
+
x
)
n
are in A.P.
then the value of
n
n
is:
Report Question
0%
5
5
0%
6
6
0%
7
7
0%
9
9
The cooeficient of
x
n
x
n
in the expension of
(
1
−
2
x
)
−
1
/
2
(
1
−
2
x
)
−
1
/
2
Report Question
0%
(
2
n
!
)
2
n
(
n
!
)
(
2
n
!
)
2
n
(
n
!
)
0%
(
2
n
!
)
2
n
(
n
!
)
2
(
2
n
!
)
2
n
(
n
!
)
2
0%
(
2
n
!
)
2
n
+
1
(
n
!
)
2
(
2
n
!
)
2
n
+
1
(
n
!
)
2
0%
(
2
n
!
)
2
n
−
1
(
n
!
)
2
(
2
n
!
)
2
n
−
1
(
n
!
)
2
In the expansion of
(
3
−
√
17
4
+
3
√
2
)
15
(
3
−
√
17
4
+
3
√
2
)
15
the
11
t
h
11
t
h
term is a :
Report Question
0%
positive integer
0%
positive irrational number
0%
negative integer
0%
negative irrational number
The value of m, for which the coefficients of the
(
2
m
+
1
)
(
2
m
+
1
)
and
(
4
m
+
5
)
t
h
(
4
m
+
5
)
t
h
terms in the expansion
(
1
+
x
)
10
(
1
+
x
)
10
are equal, is:
Report Question
0%
3
0%
1
0%
5
0%
8
The number of terms in the expansion of
(
2
x
+
3
y
−
4
z
)
n
(
2
x
+
3
y
−
4
z
)
n
,
is
Report Question
0%
n
+
1
n
+
1
0%
n
+
3
n
+
3
0%
(
n
+
1
)
(
n
+
2
)
2
(
n
+
1
)
(
n
+
2
)
2
0%
none of these
If the second, third and fourth terms in the expansion of
(
a
+
b
)
n
(
a
+
b
)
n
are 135, 30 and 10/3 respectively, then the value of a is
Report Question
0%
3
0%
4
0%
5
0%
7
The sum of coefficients of integral powers of
x
x
in the binomial expansion of
(
1
−
2
√
x
)
−
n
(
1
−
2
√
x
)
−
n
is
Report Question
0%
1
2
(
3
50
−
1
)
1
2
(
3
50
−
1
)
0%
1
2
(
2
50
+
1
)
1
2
(
2
50
+
1
)
0%
1
2
(
3
50
+
1
)
1
2
(
3
50
+
1
)
0%
1
2
(
3
50
)
1
2
(
3
50
)
The coefficient of
a
3
b
4
c
5
a
3
b
4
c
5
in the expansion of
(
b
c
+
c
a
+
a
b
)
6
(
b
c
+
c
a
+
a
b
)
6
is
Report Question
0%
40
0%
60
0%
80
0%
100
In the expansion of
(
3
−
√
17
4
+
3
√
2
)
15
(
3
−
√
17
4
+
3
√
2
)
15
the 11th term is a
Report Question
0%
Positive integer
0%
positive irrational number
0%
negative integer
0%
negative irrational number
The coefficient of
x
9
x
9
in
(
x
−
1
)
(
x
−
4
)
(
x
−
9
)
.
.
.
.
.
.
(
x
−
100
)
(
x
−
1
)
(
x
−
4
)
(
x
−
9
)
.
.
.
.
.
.
(
x
−
100
)
is
Report Question
0%
-235
0%
235
0%
385
0%
-385
If the third term in the binomial expansion of
(
1
+
x
)
m
(
1
+
x
)
m
is
−
1
8
x
2
−
1
8
x
2
, the the rational value of m is-
Report Question
0%
2
2
0%
1
2
1
2
0%
3
3
0%
4
4
If
C
0
,
C
1
,
C
2
,
.
.
.
.
.
,
C
n
C
0
,
C
1
,
C
2
,
.
.
.
.
.
,
C
n
are the binomial coefficients, then
2
C
1
+
2
3
C
3
+
2
5
C
5
+
.
.
.
2
C
1
+
2
3
C
3
+
2
5
C
5
+
.
.
.
equals
Report Question
0%
3
n
+
(
−
1
)
n
2
3
n
+
(
−
1
)
n
2
0%
3
n
−
(
−
1
)
n
2
3
n
−
(
−
1
)
n
2
0%
3
n
+
1
2
3
n
+
1
2
0%
3
n
−
1
2
3
n
−
1
2
Explanation
We have,
(
1
+
x
)
n
=
C
0
+
C
1
x
+
C
2
x
2
+
C
3
x
3
+
.
.
.
.
+
C
n
x
n
.
.
.
(
1
)
and
(
1
−
x
)
n
=
C
0
−
C
1
x
+
C
2
x
2
−
C
3
x
3
+
.
.
.
.
.
+
(
−
1
)
n
⋅
C
n
x
n
.
.
.
(
2
)
Subtracting equation
(
2
)
from
(
1
)
⇒
(
1
+
x
)
n
−
(
1
−
x
)
n
=
2
[
C
1
x
+
C
3
x
3
+
C
5
x
5
+
.
.
.
.
]
⇒
1
2
[
(
1
+
x
)
n
−
(
1
−
x
)
n
]
=
C
1
x
+
C
3
x
3
+
C
5
x
5
+
.
.
.
.
.
Putting
x
=
2
, we get,
2
C
1
+
2
3
C
3
+
2
5
C
5
+
.
.
.
=
3
n
−
(
−
1
)
n
2
Hence, the correct answer is option (B).
Number of different terms in the sum
(
1
+
x
)
2009
⋅
(
1
+
x
2
)
2008
+
(
1
+
x
3
)
2007
,
is
Report Question
0%
3683
0%
4007
0%
4017
0%
4352
The middle term of
(
x
−
1
x
)
2
n
+
1
Report Question
0%
2
n
+
1
c
n
.
x
0%
2
n
+
1
c
n
0%
(
−
1
)
n
2
n
+
1
c
n
0%
(
−
1
)
n
2
n
+
1
c
n
.
x
The coefficient of
x
49
in the expansion of
(
x
−
1
)
(
x
−
1
2
)
(
x
−
1
2
2
)
.
.
.
.
.
(
x
−
1
2
49
)
is equal to
Report Question
0%
−
2
(
1
−
1
2
50
)
0%
+
v
e
c
o
e
f
f
i
c
i
e
n
t
o
f
x
0%
−
v
e
c
o
e
f
f
i
c
i
e
n
t
o
f
x
0%
−
2
(
1
−
1
2
49
)
The coefficient of
x
49
in the product
(
x
−
1
)
(
x
−
3
)
…
(
x
−
99
)
is
Report Question
0%
−
99
2
0%
1
0%
−
2500
0%
99
2
The number of terms in the expansion of
(
x
2
+
1
+
1
x
2
)
n
,
n
∈
N
,
is :
Report Question
0%
2
n
0%
3
n
0%
2
n
+
1
0%
None
If the number of terms in
(
x
+
1
+
1
x
)
n
(
n
∈
I
+
)
is
401
, then
n
is greater then
Report Question
0%
201
0%
200
0%
199
0%
N
o
n
e
o
f
t
h
e
s
e
The coefficient x
2
i
n
(
1
+
2
x
+
3
x
2
+
.
.
)
−
3
/
2
is
Report Question
0%
21
0%
25
0%
26
0%
None of these
In the expansion of
(
x
3
−
1
x
2
)
n
,
n
ϵ
N
,
if the sum of the coefficient of
x
5
a
n
d
x
10
is 0 then n is
Report Question
0%
25
0%
20
0%
15
0%
none of these
The sum of the coefficients of even powers of
x
in the expansion of
(
1
+
x
+
x
2
+
x
3
)
5
is
Report Question
0%
512
0%
−
512
0%
1024
0%
−
1024
After simplification, the total number of terms in the expansion of
(
x
+
√
2
)
4
+
(
x
−
√
2
)
4
is-
Report Question
0%
10
0%
5
0%
4
0%
3
The number of integral terms in expansion
(
2
√
3
+
8
√
5
)
256
is
Report Question
0%
32
0%
33
0%
34
0%
35
The number of distinct terms in the expansion of
(
x
+
y
2
)
13
+
(
x
2
+
y
)
14
is
Report Question
0%
27
0%
29
0%
28
0%
25
If
r
and
n
are positive integers;
r
>
1
,
n
>
2
, and the coefficient of
(
r
+
2
)
t
h
term and
3
r
t
h
term in the expansion of
(
1
+
x
)
2
n
are equal, then
n
equals
Report Question
0%
3
r
0%
3
r
+
1
0%
2
r
0%
2
r
+
1
The coefficient of the term independent of
x
in the expansion of
(
1
−
x
)
2
⋅
(
x
+
1
x
)
10
is
Report Question
0%
11
C
3
0%
10
C
3
0%
10
C
4
0%
None of these
If
x
15
−
x
13
+
x
11
−
x
9
+
x
7
−
x
5
+
x
3
−
x
=
7
then
Report Question
0%
x
16
is
15
0%
x
16
is less then
15
0%
x
16
greater then
15
0%
nothing can be said about
x
16
Number of irrational terms in the expansion of
(
√
2
+
√
3
)
15
a
r
e
Report Question
0%
9
0%
7
0%
16
0%
10
Total number of terms in the expansion of [(1+x)
100
+(1+x
2
)
100
+(1+x
3
)
100
] is
Report Question
0%
303
0%
201
0%
196
0%
301
Coefficient of
x
25
in
(
1
+
x
+
x
2
+
x
3
+
.
.
.
.
x
10
)
7
is
Report Question
0%
31
C
15
−
7.
20
C
14
0%
31
C
14
−
7.
20
C
14
0%
31
0%
None of these
In the expansion of
x
2
(
√
x
+
λ
x
2
)
10
. The coefficient of
x
2
is
720
then
λ
is
Report Question
0%
4
0%
9
0%
2
0%
3
The coefficient of
1
x
in the expansion of
(
1
+
x
)
n
(
1
+
1
x
)
n
is
Report Question
0%
n
!
(
n
−
1
)
!
(
n
+
1
)
!
0%
2
n
!
(
n
−
1
)
!
(
n
+
1
)
!
0%
2
n
!
(
2
n
−
1
)
!
(
2
n
+
1
)
!
0%
None of these
The coefficient of t
t
4
in
(
1
−
t
6
1
−
t
)
3
is
Report Question
0%
18
0%
12
0%
9
0%
15
The number of distinct terms in the expansion of
(
x
+
1
x
+
x
2
+
1
x
2
)
15
is/are
Report Question
0%
255
0%
61
0%
127
0%
N
o
n
e
o
f
t
h
e
s
e
If x=1/3, then the greatest term in the expansion of
(
1
+
4
x
)
8
is
Report Question
0%
56
(
3
4
)
4
0%
56
(
4
3
)
4
0%
56
(
3
4
)
5
0%
56
(
2
5
)
4
(
5
1
2
+
7
1
6
)
642
contains
n
integral terms then
n
is
Report Question
0%
108
0%
106
0%
107
0%
109
The coefficient of
x
4
y
i
n
t
h
e
e
x
p
a
n
s
i
o
n
o
f
(
x
−
1
)
(
x
−
1
2
)
(
x
−
1
2
2
)
.
.
.
.
.
.
(
x
−
1
2
49
)
is equal to
Report Question
0%
−
2
(
1
−
1
2
50
)
0%
+ve cocfficient of x.
0%
-ve coefficient of x
0%
−
2
(
1
−
1
2
49
)
The coefficient of
x
15
in the product of
(
1
−
x
)
(
1
−
2
x
)
(
1
−
2
2
x
)
…
…
…
…
(
1
−
2
15
x
)
is equal to
Report Question
0%
2
105
−
2
121
0%
2
121
−
2
105
0%
2
120
−
2
104
0%
none of these
The 13th term of
(
9
x
−
1
3
√
x
)
18
i
s
Report Question
0%
17682
0%
18564
0%
18564
x
6
0%
none of these
The coefficient of
x
98
in the expression of
(
×
−
1
)
(
×
−
2
)
.
.
.
.
.
.
.
(
×
−
100
)
must be
Report Question
0%
1
2
+
2
2
+
3
2
+
.
.
.
.
.
+
100
2
0%
(
1
+
2
+
3
+
.
.
.
.
.
+
100
2
)
−
(
1
2
+
2
2
+
3
2
+
.
.
.
.
.
+
100
2
)
0%
1
2
(
1
+
2
+
3
+
.
.
.
.
.
+
100
)
2
−
(
1
2
+
2
2
+
3
2
+
.
.
.
.
.
+
100
2
)
0%
none of these
The coefficient of
x
4
in
(
x
2
−
3
x
2
)
10
is
Report Question
0%
450
263
0%
405
256
0%
504
259
0%
none of these
the coefficient of
x
5
in the expansion of
(
1
+
x
)
10
.
(
1
+
1
x
)
20
is
Report Question
0%
30
C
5
0%
10
C
5
0%
20
C
5
0%
30
C
20
The coefficient of
x
m
in
(
1
+
x
)
p
+
(
1
+
x
)
p
+
1
+
.
.
.
.
+
(
1
+
x
)
n
,
p
≤
m
≤
n
is
Report Question
0%
n
+
1
C
m
+
1
0%
n
−
1
C
m
−
1
0%
n
C
m
0%
n
C
m
+
1
The sum of the remaining terms is the group after
2000
t
h
term in which
2000
t
h
term in
Report Question
0%
1088
0%
1008
0%
1040
0%
none of there
The coefficient of
x
9
in the expansion of (1+x)
(
1
+
x
2
)
(
1
+
x
3
)
.
.
.
.
(
1
+
x
100
)
is____.
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0%
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0%
8
0%
None of these.
The first integral term in the expansion of
(
√
3
+
3
√
2
)
9
, is its
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0%
2nd term
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3 rd term
0%
4th term
0%
5th term
The sum of the coefficients in the expansion of
(
1
+
x
−
3
x
2
)
171
is
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0%
0
0%
1
0%
-1
0%
None of these
0:0:2
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0
Answered
1
Not Answered
49
Not Visited
Correct : 0
Incorrect : 0
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Practice Class 11 Engineering Maths Quiz Questions and Answers
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