Please Solve this question for a Linear Algebra Class Q2) Determine whether the matrix is in row-echelon form. If it is, determine whether it is also in reduced row-echelon form.
[[1,0,0,0],[0,1,1,2],[0,0,0,0]]
[[0,1,0,0],[1,0,2,1]]
[[2,0,1,3],[0,-1,1,4],[0,0,0,1]]
[[1,0,2,1],[0,1,3,4],[0,0,1,0]]
[[0,0,1,0,0],[0,0,0,1,0],[0,0,0,2,0]]
[[1,0,0,0],[0,0,0,1],[0,0,0,0]]