增广矩阵 (A,b)=3 2 1 1 -3 a1 1 1 1 1 10 1 2 2 6 35 4 3 3 -1 br1-3r2,r4-5r20 -1 -2 -2 -6 a-31 1 1 1 1 10 1 2 2 6 30 -1 -2 -2 -6 b-5r1+r3,r4+r3,r2-r30 0 0 0 0 a1 0 -1 -1 -5 -20 1 2 2 6 30 0 0 0 0 b-2所...
您好,判断a与b取什么值时,线性方程组有解?
增广矩阵 (A,b)=3 2 1 1 -3 a1 1 1 1 1 10 1 2 2 6 35 4 3 3 -1 br1-3r2,r4-5r20 -1 -2 -2 -6 a-31 1 1 1 1 10 1 2 2 6 30 -1 -2 -2 -6 b-5r1+r3,r4+r3,r2-r30 0 0 0 0 a1 0 -1 -1 -5 -20 1 2 2 6 30 0 0 0 0 b-2所...