# Matrices : Finding the Rank

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How to find rank of a matrix: definitions and an example (4*4 matrix) with detailed explanations.

Find the rank of

A= [1 0 2 0]

[4 0 3 0]

[5 0 -1 0]

[2 -3 1 1].

Show all work.

https://brainmass.com/math/linear-algebra/matrices-finding-rank-12863

#### Solution Preview

Rank of a matrix is equal to the number of linearly independent rows in the matrix

Notice, (1) the number of linearly independent rows is always equal to the number of linearly independent rows;

(2) columns (rows) ...

#### Solution Summary

The rank of a matrix is found. The solution is detailed and well presented.

$2.49