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Question
______ matrix is both symmetric and skew-symmetric matrix.
Solution
Null matrix is both symmetric and skew-symmetric matrix.
Explanation:
Null matrix i.e. `[(0, 0),(0, 0)]`
or
`[(0, 0, 0),(0, 0, 0),(0, 0, 0)]` is both symmetric and skew-symmetric matrix.
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