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Problem
Problem
Express
A
A
A
as the sum of a hermitian and a skew-hermitian matrix, where
A
=
[
2
+
3
i
7
1
−
i
2
i
]
,
i
=
−
1
A = \begin{bmatrix} 2+3i & 7 \\ 1-i & 2i \end{bmatrix}, i = \sqrt{-1}
A
=
[
2
+
3
i
1
−
i
7
2
i
]
,
i
=
−
1
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