Find the rank of the matrix by reducing to echelon form A = ((1, 1, 1, 1)(1, 3, -2, 1)(2, 0, -3, 2))

Question

Find the rank of the matrix by reducing to echelon form A = \( \begin{pmatrix} 1 & 1 & 1 & 1 \\ 1 & 3 & -2 & 1\\ 2 & 0 & -3 & 2 \end{pmatrix} \)

Answer 1

A = \( \begin{pmatrix} 1 & 1 & 1 & 1 \\ 1 & 3 & -2 & 1\\ 2 & 0 & -3 & 2 \end{pmatrix} \)

Hence rank of A = 3