增广矩阵化简 2 1 -1 1 1 1 2 1 -1 2 1 1 2 1 3
问题描述:
增广矩阵化简 2 1 -1 1 1 1 2 1 -1 2 1 1 2 1 3
答
2 1 -1 1 11 2 1 -1 21 1 2 1 3r1-2r3,r2-r30 -1 -5 -1 -50 1 -1 -2 -11 1 2 1 3r1+r2,r3-r20 0 -6 -3 -60 1 -1 -2 -11 0 3 3 4r1*(-1/6),r2+r1,r3-3r10 0 1 1/2 10 1 0 -3/2 01 0 0 3/2 1r1r31 0 0 3/2 10 1 0 -3/2...