Using elementary transformation to find the inverse matrix 1232 - 14011 Using elementary transformation to find the inverse matrix (1 2 3 2 -1 4 0 1 1) 3 * 3,

Using elementary transformation to find the inverse matrix 1232 - 14011 Using elementary transformation to find the inverse matrix (1 2 3 2 -1 4 0 1 1) 3 * 3,


First, the right side of the original matrix is connected with the identity matrix 1231002 - 1401001, and then transformed (in order to change the left three columns into the identity matrix, we need to double the first row, the third row to get the new first row, and the second row plus the third row to get the new second row)