Choose the echelon matrix. (a) [(0,1)(1, 0)(0, 0)] (b) [(1, 2)(0, 1)(0, 0)] (c) [(1, 2)(0, 1)(0, 1)]

Question

Choose the echelon matrix. 

(a) \( \begin{bmatrix} 0 & 1 \\ 1 & 0 \\ 0 & 0 \end{bmatrix} \)

(b) \( \begin{bmatrix} 1 & 2 \\ 0 & 1 \\ 0 & 0 \end{bmatrix} \)

(c) \( \begin{bmatrix} 1 & 2 \\ 0 & 1 \\ 0 & 1 \end{bmatrix} \)

(d) \( \begin{bmatrix} 1 & 0 \\ 0 & 0 \\ 0 & 1 \end{bmatrix} \)

Answer 1

 (b) \( \begin{bmatrix} 1 & 2 \\ 0 & 1 \\ 0 & 0 \end{bmatrix} \)