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Please give examples of matrices which (1) is of size 2 × 4, in row echelon...

Please give examples of matrices which

(1) is of size 2 × 4, in row echelon form but not reduced row echelon form, with exactly 6 zero entries.

(2) is of size 5 × 3, in reduced row echelon form with exactly one zero row.

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