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If the sum of elements in each row of an n×n matrix Z is zero, then the matrix is ______________

If the sum of elements in each row of an n×n matrix Z is zero, then the matrix is ______________ Correct Answer singular

By the definition, an n×n matrix A is said to be singular if there exists a nonzero vector v such that Av=0. Otherwise, it is known that A is a nonsingular matrix.

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