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Standard VIII
Mathematics
Coefficients
Question
The coefficient of
x
4
in
−
5
x
7
+
3
7
x
4
−
3
x
3
+
7
x
2
−
1
is ____
7
3
7
−
3
−
5
A
−
5
B
7
C
−
3
D
3
7
Open in App
Solution
Verified by Toppr
The given equation is
−
5
x
7
+
3
7
x
4
−
3
x
3
+
7
x
2
−
1
In a mathematical equation, a coefficient is a constant by which a variable is multiplied.
Then coefficient of
x
4
the is
3
7
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3
Similar Questions
Q1
The coefficient of
x
4
in
−
5
x
7
+
3
7
x
4
−
3
x
3
+
7
x
2
−
1
is ____
View Solution
Q2
Sum to infinity the following series :
i)
1
+
3
2
+
5
2
2
+
7
2
3
+
.
.
.
ii)
1
−
3
2
+
5
4
−
7
8
+
.
.
.
.
iii)
1
+
4
x
2
+
7
x
4
+
10
x
6
+
.
.
.
.
,
|
x
|
View Solution
Q3
Find all zeroes of the polynomial if
2
of its zeroes are
±
√
3
.
f
(
x
)
=
x
4
−
3
x
3
−
7
x
2
+
12
View Solution
Q4
multiple
A
=
3
x
4
4
−
x
4
2
+
5
x
−
7
;
B
=
2
x
3
3
+
3
x
3
2
−
x
6
;
C
=
2
x
4
3
−
3
x
4
4
+
5
find
B
A
View Solution
Q5
If
A
=
3
x
4
4
−
x
4
2
+
5
x
−
7
;
B
=
2
x
3
3
+
3
x
3
2
−
x
6
;
C
=
2
x
4
3
−
3
x
4
4
+
5
Find
(
−
A
)
C
View Solution