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Mathematics
Mathematics
Problem
If
A
=
[
2
9
−
4
5
]
A = \begin{bmatrix} 2 & 9 \\ -4 & 5 \end{bmatrix}
A
=
[
2
−
4
9
5
]
,
B
=
[
1
5
6
8
]
B = \begin{bmatrix} 1 & 5 \\ 6 & 8 \end{bmatrix}
B
=
[
1
6
5
8
]
and
C
=
[
9
−
7
−
2
4
]
C = \begin{bmatrix} 9 & -7 \\ -2 & 4 \end{bmatrix}
C
=
[
9
−
2
−
7
4
]
, then show that
A
(
B
+
C
)
=
A
B
+
A
C
A(B + C) = AB + AC
A
(
B
+
C
)
=
A
B
+
A
C
.
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