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Mathematics
Mathematics
Problem
Let
A
=
(
0
1
−
1
0
)
A = \begin{pmatrix}0 & 1\\ -1 & 0\end{pmatrix}
A
=
(
0
−
1
1
0
)
. Find
(
A
+
I
2
)
(
I
2
−
A
)
(A + I_2)(I_2 - A)
(
A
+
I
2
)
(
I
2
−
A
)
. a)
I
2
I_2
I
2
b)
O
2
O_2
O
2
c)
2
I
2
2I_2
2
I
2
d)
−
2
I
2
-2I_2
−
2
I
2
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