2,-1.-1,1,2 1,1,-2.1,4 4,-6,2,-2,4 3,6,-9,7,9 化为行最简形矩阵要过程
问题描述：
2,-1.-1,1,2 1,1,-2.1,4 4,-6,2,-2,4 3,6,-9,7,9 化为行最简形矩阵要过程
五个数一组的
答
r3-2r1,r1-2r2,r4-3r20 -3 3 -1 -61 1 -2 1 40 -4 4 -4 00 3 -3 4 -3r3*(-1/4),r1+3r3,r4-3r30 0 0 2 -61 1 -2 1 40 1 -1 1 00 0 0 1 -3r1-2r40 0 0 0 01 1 -2 1 40 1 -1 1 00 0 0 1 -3交换行1 1 -2 1 40 1 -1 1 00 ...