Express the following matrix as a sum of a symmetric and skew - sym...

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Express the following matrix as a sum of a symmetric and skew - symmetric matrices and
\( \mathrm{P} \)
verify your result:
W
\[
\left[\begin{array}{ccc}
3 & -2 & -4 \\
3 & -2 & -5 \\
-1 & 1 & 2
\end{array}\right]
\]
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