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Mathematics
Mathematics
Problem
Let
A
=
[
2
1
0
3
]
A=\begin{bmatrix}2&1\\0&3\end{bmatrix}
A
=
[
2
0
1
3
]
and
B
=
[
1
4
2
0
]
B=\begin{bmatrix}1&4\\2&0\end{bmatrix}
B
=
[
1
2
4
0
]
. Calculate
A
B
−
B
A
AB - BA
A
B
−
B
A
. a)
[
−
2
5
−
2
2
]
\begin{bmatrix}-2&5\\-2&2\end{bmatrix}
[
−
2
−
2
5
2
]
b)
[
6
21
10
2
]
\begin{bmatrix}6&21\\10&2\end{bmatrix}
[
6
10
21
2
]
c)
[
2
−
5
2
−
2
]
\begin{bmatrix}2&-5\\2&-2\end{bmatrix}
[
2
2
−
5
−
2
]
d)
[
4
8
6
0
]
\begin{bmatrix}4&8\\6&0\end{bmatrix}
[
4
6
8
0
]
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