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Question
Mathematics
if A = [2&1 -1&2], B = [1&-2 2&1], C = [1&-3 2&1], then
Q. if
A
=
[
2
−
1
1
2
]
,
B
=
[
1
2
−
2
1
]
,
C
=
[
1
2
−
3
1
]
,
then
1743
236
Matrices
Report Error
A
A
+
B
=
B
+
A
and
A
+
(
B
+
C
)
=
(
A
+
B
)
+
C
46%
B
A
+
B
=
B
+
A
and
A
C
=
BC
30%
C
A
+
B
=
B
+
A
and
A
B
=
BC
14%
D
A
C
=
BC
and
A
=
BC
11%
Solution:
In option (a), there are two laws, commutative law and associative law, which are satisfied by all matrices. Thus, option (a) is correct.