Mathematics, 10.09.2020 03:01 Sanshine

Determine whether a matrix is in row-echelon form only (REF only), reduced row-echelon form (RREF), or neither: 3.10. For the matrices below, state whether the matrix is in row-echelon form only (REF only), reduced row-echelon form (RREF), or nei- ther (a) 1 0 0 (b) 1 0 0 (c) 1 2 0 (d) 0 1 0 (e) 1 5 2
0 1 0 0 1 0 0 1 0 0 0 1 0 0 1
0 0 1 1 0 0 0 0 0 0 0 0 0 0 0

(f) 1 3 4 (g) 1 4 -3 (h) 0 0 0 (i) 1 0 3 1 (j) 1 -7 5 5
0 0 0 0 1 1 0 0 0 0 1 2 4 0 1 3 2

(k) 1 0 0 5 1 2 0 3 0 (m) 1 3 0 2 0
0 0 1 3 (l) 0 0 1 1 0 1 0 2 2 0
0 1 0 4 0 0 0 0 1 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0

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