If A is a 3 x 5 matrix, then the number of leading 1's in its reduced row echelon form is at most ___________. Explain.

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- February 19th 2013, 06:05 PMCivy71Matrix and reduced row echelon
If A is a 3 x 5 matrix, then the number of leading 1's in its reduced row echelon form is at most ___________. Explain.

- February 20th 2013, 03:30 PMchiroRe: Matrix and reduced row echelon
Hey Civy71.

Hint: If you row-reduce the matrix with leading 1's in each column, then what is the maximum number of these 1's that you can get?