Find Rank of a 3x3 Matrix (with row echelon form) | Linear Algebra Exercises

The rank of a 3x3 matrix is the number of linearly independent rows or the number of linearly independent columns the matrix has. These definitions are equivalent. To find this number, we can perform row operations to transform a matrix to row echelon form and or reduced row echelon form and count the nonzero rows, whose leading entries are called pivot numbers. We'll find the rank of three 3 by 3 matrices in today's linear algebra lesson. #linearalgebra

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