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Mathematics
Mathematics
Problem
Let
A
=
(
2
3
−
1
4
)
A=\begin{pmatrix}2 & 3\\ -1 & 4\end{pmatrix}
A
=
(
2
−
1
3
4
)
and
B
=
1
11
(
4
−
3
1
2
)
B=\dfrac{1}{11}\begin{pmatrix}4 & -3\\ 1 & 2\end{pmatrix}
B
=
11
1
(
4
1
−
3
2
)
. Verify that
A
B
=
I
2
AB=I_2
A
B
=
I
2
.
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