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Anisha Mishra
Subject: Maths
, asked on 6/3/18
I
f
(
1
+
x
)
n
=
c
0
+
c
1
+
c
2
x
2
+
.
.
.
.
.
.
.
+
c
n
x
n
p
r
o
v
e
t
h
a
t
c
1
+
2
c
2
+
3
c
3
+
.
.
.
.
.
.
.
.
+
n
c
n
=
n
2
n
-
1
Answer
1
Divya Mahesh
Subject: Maths
, asked on 5/3/18
Solve this:
Q.17. Find the term containing
x
10
in the expansion of
2
x
2
-
3
/
x
11
OR
Find the term independent of x in the expansion of
2
x
-
1
/
x
10
,
x
≠
0
Answer
1
Ian Colaco
Subject: Maths
, asked on 1/3/18
Using Binomial theorem prove that 6^n - 5n-1 is divisible by 25 for all n element of N
Answer
1
Noel George Cherian
Subject: Maths
, asked on 21/2/18
.Find the coefficient of x ^32 and x ^−17 in the expansion of (x ^4 − 1/ x 3 ) ^15 .
Answer
1
Raj Aryan
Subject: Maths
, asked on 8/2/18
Solve this:
Q3. Determine the value of x in the expression (x + x
log x
)
5
if the third term in the expansion is 10,00,000.
Answer
1
Raj Aryan
Subject: Maths
, asked on 8/2/18
Problem 3:
If
p
+
q
=
1
, then show that
∑
r
=
0
n
r
2
C
r
p
r
q
n
-
r
=
n
p
q
+
n
2
p
2
.
Answer
1
Raj Aryan
Subject: Maths
, asked on 8/2/18
If
x + y
= 1, then
∑
r
=
0
n
r
n
C
r
x
r
y
n
-
r
equals
(A) 1 (B)
n
(C)
nx
(D)
ny
Answer
1
Raj Aryan
Subject: Maths
, asked on 8/2/18
Solve this:
Q). Find the remainder when
106
85
-
85
106
+
1
is divisible by 7.
Answer
1
Naga Nandhini
Subject: Maths
, asked on 7/2/18
Find the coefficient of a
4
in the product (1+2a)
4
(2-a)
5
using binomial theorem
Answer
1
Aishwarya
Subject: Maths
, asked on 31/1/18
Solve this:
Answer
2
Raj Aryan
Subject: Maths
, asked on 29/1/18
Can you please explain this question by taking coff step by step.
F
i
n
d
t
h
e
c
o
e
f
f
i
c
i
e
n
t
o
f
x
4
i
n
t
h
e
e
x
p
a
n
s
i
o
n
o
f
1
+
x
-
2
x
2
7
Answer
1
Vanshika Sharma
Subject: Maths
, asked on 21/1/18
Solve this:
Q9. The co-efficient of x
k
(
0
≤
k
≤
n
) in the expansion of E = 1 +(1+ x) + (1+x)
2
+......+ (1 + x)
n
is
A
n
+
1
C
k
+
1
B
n
C
k
C
n
+
1
C
n
-
k
-
1
D
n
+
1
C
n
-
k
-
1
Q10. The last term in the binomial expansion of
2
3
-
1
2
i
s
1
3
.
9
3
log
3
8
. Then the 5
th
term from the beginning is
A
4
.
10
C
6
B
2
.
10
C
4
C
1
2
.
10
C
4
C
10
C
6
Answer
2
Priyansh
Subject: Maths
, asked on 8/1/18
Q 12 please answer as soon as possible
12
.
C
o
e
f
f
i
c
i
e
n
t
o
f
x
29
i
n
t
h
e
p
o
l
y
n
o
m
i
a
l
x
-
1
1
×
3
x
-
2
1
×
3
×
5
x
-
3
1
×
3
×
5
×
7
.
.
.
.
.
.
.
.
.
.
.
x
-
30
1
×
3
×
.
.
.
.
×
61
i
s
(
A
)
1
2
1
-
1
1
×
3
×
.
.
.
.
.
.
.
.
.
×
61
(
B
)
-
1
2
+
1
1
×
3
×
.
.
.
.
.
.
×
61
(
C
)
-
1
2
1
-
1
1
×
3
×
.
.
.
.
.
.
.
.
.
×
61
(
D
)
29
1
×
3
×
.
.
.
.
.
.
.
.
×
61
Answer
1
Kavya S
Subject: Maths
, asked on 4/1/18
Solve (9X - 1/?3x)^18 by binomial theorem
Answer
1
Goku
Subject: Maths
, asked on 31/12/17
Q. If the coefficients of 5th , 6th and 7th terms of
1
+
x
n
are in A.P., then n =
10
12
14
15
Answer
1
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What are you looking for?
Q.17. Find the term containing in the expansion of
OR
Find the term independent of x in the expansion of
Q3. Determine the value of x in the expression (x + xlog x)5 if the third term in the expansion is 10,00,000.
(A) 1 (B) n (C) nx (D) ny
Q). Find the remainder when is divisible by 7.
Q9. The co-efficient of xk () in the expansion of E = 1 +(1+ x) + (1+x)2 +......+ (1 + x)n is
Q10. The last term in the binomial expansion of . Then the 5th term from the beginning is
Q. If the coefficients of 5th , 6th and 7th terms of are in A.P., then n =