If every row of a 4 by 4 matrix contains the numbers 0, 1, 2, 3 in some order, can the
Chapter 1, Problem 1.6.66(choose chapter or problem)
If every row of a 4 by 4 matrix contains the numbers 0, 1, 2, 3 in some order, can the matrix be symmetric? Can it be invertible?
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