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Byju's Answer
Standard X
Mathematics
Multiplication of Matrices
Find a matrix...
Question
Find a matrix
A
such that
2
A
−
3
B
+
5
C
=
O
,
where
B
=
[
−
2
2
0
3
1
4
]
and
C
=
[
2
0
−
2
7
1
6
]
.
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Solution
Given,
2
A
−
3
B
+
5
C
=
0
⇒
2
A
=
3
B
−
5
C
⇒
2
A
=
3
[
−
2
2
0
3
1
4
]
−
5
[
2
0
−
2
7
1
6
]
⇒
2
A
=
[
−
6
6
0
9
3
12
]
−
[
10
0
−
10
35
5
30
]
⇒
2
A
=
[
−
16
6
10
−
26
−
2
−
18
]
⇒
A
=
[
−
8
3
5
−
13
−
1
−
9
]
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0
Similar questions
Q.
Find a matrix
A
such that
2
A
−
3
B
+
5
C
=
O
,
where
B
=
[
−
2
2
0
3
1
4
]
and
C
=
[
2
0
−
2
7
1
6
]
.
Q.
Find a matrix
X
such that
2
A
+
B
+
X
=
O
,
where
A
=
[
−
1
2
3
4
]
B
=
[
3
−
2
1
5
]
Q.
(i) Find a matrix X such that 2A + B + X = O, where
A =
-
1
2
3
4
, B =
3
-
2
1
5
(ii) If A =
8
0
4
-
2
3
6
and B =
2
-
2
4
2
-
5
1
, then find the matrix X of order 3 × 2 such that 2A + 3X = 5B.
Q.
If
A
=
[
6
2
5
−
4
]
and
B
=
[
1
2
−
5
1
]
, find a matrix
X
such that
2
A
+
3
B
−
5
X
=
0
Q.
Given
A
=
[
2
−
1
2
0
]
,
B
=
[
−
3
2
4
0
]
a
n
d
C
=
[
2
0
0
2
]
,
find the matrix
X
such that
A
+
X
=
2
B
+
C
.
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