If A is a symmetric matrix, then ${A^3}$ is a ……….. matrix.
If A is a symmetric matrix, then ${A^3}$ is a ……….. matrix.
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If A is a symmetric matrix, then ${A^3}$ is a symmetric matrix.
${A^\prime } = A$
$\therefore$ $\left( {{A^3}} \right)' = A{'^3}$
$= {A^3}$
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