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Question

Suppose, M is a lower triangular matrix with all diagonal entries zero. The resultant matrix of M+I will be ___________

a.

idempotent

b.

singular

c.

nilpotent

d.

inverse

Posted under Discrete Mathematics

Answer: (b).singular

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Q. Suppose, M is a lower triangular matrix with all diagonal entries zero. The resultant matrix of M+I will be ___________

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