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(B) Given that $A$ and $B$ are symmetric matrices, we have $A^{\prime} = A$ and $B^{\prime} = B$. Consider the transpose of the matrix $(AB - BA)$: $(

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a skew-symmetric matrix

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(B) Given that $A$ and $B$ are symmetric matrices, we have $A^{\prime} = A$ and $B^{\prime} = B$. Consider the transpose of the matrix $(AB - BA)$: $(AB - BA)^{\prime} = (AB)^{\prime} - (BA)^{\prime}$ Using the property $(XY)^{\prime} = Y^{\prime}X^{\prime}$, we get: $(AB - BA)^{\prime} = B^{\prime}A^{\prime} - A^{\prime}B^{\prime}$ Substituting $A^{\prime} = A$ and $B^{\prime} = B$: $(AB - BA)^{\prime} = BA - AB$ $(AB - BA)^{\prime} = -(AB - BA)$ Since the transpose of the matrix $(AB - BA)$ is equal to its negative, the matrix $(AB - BA)$ is a skew-symmetric matrix.

Let $A$ and $B$ be two symmetric matrices of the same order. Then, the matrix $AB - BA$ is

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