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Mathematics
Mathematics
Problem
Given
A
−
1
=
(
1
2
0
1
)
A^{-1}=\begin{pmatrix}1 & 2\\0 & 1\end{pmatrix}
A
−
1
=
(
1
0
2
1
)
and
B
−
1
=
(
2
0
1
3
)
B^{-1}=\begin{pmatrix}2 & 0\\1 & 3\end{pmatrix}
B
−
1
=
(
2
1
0
3
)
, find
(
B
A
)
−
1
(BA)^{-1}
(
B
A
)
−
1
.
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