1 1 2 Reduce the following matrix to normal form and hence find its rank: 2-1 4 [13 2 5 1 -1 3 2 4 3 4 4 1 2 1 22 - 1 6. 3 (ii) 1 2 3 4 3 -1 1 2 1 1 2 3-1 -1 -2 9 1 2 0 1 02 LO 5 2-3 E