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Standard XII
Mathematics
Scalar Multiplication of a Matrix
Question
If
A
=
[
2
−
3
3
2
]
and
B
=
[
3
−
2
2
3
]
,
then
2
A
−
B
=
[
1
4
4
1
]
[
1
4
1
4
]
[
1
−
4
4
1
]
[
4
1
1
4
]
A
[
4
1
1
4
]
B
[
1
4
4
1
]
C
[
1
4
1
4
]
D
[
1
−
4
4
1
]
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Solution
Verified by Toppr
Given,
A
=
[
2
−
3
3
2
]
and
B
=
[
3
−
2
2
3
]
T
herefore,
2
A
−
B
=
[
4
−
6
6
4
]
−
[
3
−
2
2
3
]
=
[
1
−
4
4
1
]
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Similar Questions
Q1
If
A
=
[
2
−
3
3
2
]
and
B
=
[
3
−
2
2
3
]
,
then
2
A
−
B
=
View Solution
Q2
If
A
=
[
1
2
3
2
3
1
]
and
B
=
[
3
−
1
3
−
1
0
2
]
, then
2
A
−
B
is
View Solution
Q3
If
A
=
(
3
2
5
1
)
,
B
=
(
1
−
2
2
3
)
and
O
=
(
0
0
0
0
)
then
verify (i) A + B = B + A
(ii) A + (-A) = O = (-A) + A.
View Solution
Q4
Factorise:
Factorization of
(
2
a
+
b
)
2
+
5
(
2
a
+
b
)
+
6
is
(
2
a
+
b
+
3
)
(
2
a
+
b
+
2
)
If true then enter
1
and if false then enter
0
View Solution
Q5
If
A
=
−
x
2
−
5
x
+
3
and
B
=
4
x
2
+
7
x
−
1
, then calculate
3
2
B
−
2
A
?
View Solution