1.

Matrices of order 3×3 are formed using the elements of set A={−3,−2,−1,0,1,2,3}. Then the probability that matrices are either symmetric or skew-symmetric, is

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Matrices of order 3×3 are formed using the elements of set A={3,2,1,0,1,2,3}. Then the probability that matrices are either symmetric or skew-symmetric, is



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