Answer to Question #44920 in Linear Algebra for Anurodh

Question #44920
Which of the following statements are true and which are false? Justify your answer with a
short proof or a counterexample.

The rank of a matrix equals its number of nonzero rows.
1
Expert's answer
2014-08-14T10:38:43-0400
The statement is false. For example, in matrix rows 1 1 and 2 2 are nonzero, but the rank of matrix is 1, which is not equal to 2 (its number of nonzero rows).

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