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Mathematics
Mathematics
Problem
Calculate the product
A
B
AB
A
B
where
A
=
[
1
2
3
4
]
,
B
=
[
0
−
1
2
1
]
A = \begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix},\; B = \begin{bmatrix} 0 & -1 \\ 2 & 1 \end{bmatrix}
A
=
[
1
3
2
4
]
,
B
=
[
0
2
−
1
1
]
.
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