If A is a 3 x 5 matrix, then the number of leading 1's in any of its row echelon forms is at most _____________?

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- Feb 20th 2013, 06:28 PMCivy71Row echelon forms
If A is a 3 x 5 matrix, then the number of leading 1's in any of its row echelon forms is at most _____________?

- Feb 21st 2013, 11:34 PMMacstersUndeadRe: Row echelon forms
The question is equivalent to saying "The number of independent variables is at most _____". You have three equations of five variables.