A matrix is called skew-symmetric if A^T = −A. If A is a n × n matrix, then show the following: i. The matrix B = A + A^T is symmetric. ii. The matrix C = A − A^Tis skew-symmetric.

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Chapter6: Linear Systems
Section6.3: Matrix Algebra
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A matrix is called skew-symmetric if A^T = −A. If A is a n × n matrix,
then show the following:
i. The matrix B = A + A^T is symmetric.

ii. The matrix C = A − A^Tis skew-symmetric.

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