Question: Use elementary row operations to reduce the matrix A to row-echelon form, and hence determine the rank of the matrix A. 12 points 2 -

Use elementary row operations to reduce the matrix A to row-echelon form, and hence determine the rank of the matrix A. 12 points 2 - 2 3 - 2 3 A = NOHW 1 - 1 1 2 -1 2

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