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Mathematics
Mathematics
Problem
Given
A
=
(
2
5
1
3
)
A=\begin{pmatrix}2&5\\1&3\end{pmatrix}
A
=
(
2
1
5
3
)
and
B
=
(
3
−
5
−
1
2
)
B=\begin{pmatrix}3&-5\\-1&2\end{pmatrix}
B
=
(
3
−
1
−
5
2
)
, calculate the product
A
B
AB
A
B
. a)
(
5
0
0
5
)
\begin{pmatrix}5&0\\0&5\end{pmatrix}
(
5
0
0
5
)
b)
(
1
0
0
1
)
\begin{pmatrix}1&0\\0&1\end{pmatrix}
(
1
0
0
1
)
c)
(
−
1
10
2
1
)
\begin{pmatrix}-1&10\\2&1\end{pmatrix}
(
−
1
2
10
1
)
d)
(
2
1
1
0
)
\begin{pmatrix}2&1\\1&0\end{pmatrix}
(
2
1
1
0
)
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