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Problems
Take
A
=
[
1
0
2
1
]
,
B
=
[
0
1
3
2
]
,
C
=
[
2
0
1
1
]
A=\begin{bmatrix}1&0\\2&1\end{bmatrix},\; B=\begin{bmatrix}0&1\\3&2\end{bmatrix},\; C=\begin{bmatrix}2&0\\1&1\end{bmatrix}
A
=
[
1
2
0
1
]
,
B
=
[
0
3
1
2
]
,
C
=
[
2
1
0
1
]
…
Mathematics
Problem
Take
A
=
[
1
0
2
1
]
,
B
=
[
0
1
3
2
]
,
C
=
[
2
0
1
1
]
A=\begin{bmatrix}1&0\\2&1\end{bmatrix},\; B=\begin{bmatrix}0&1\\3&2\end{bmatrix},\; C=\begin{bmatrix}2&0\\1&1\end{bmatrix}
A
=
[
1
2
0
1
]
,
B
=
[
0
3
1
2
]
,
C
=
[
2
1
0
1
]
. Compute
A
(
B
C
)
A(BC)
A
(
B
C
)
and
(
A
B
)
C
(AB)C
(
A
B
)
C
and comment on their equality.
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