ex1.求解下列方程组 x1+2x2+3x3+3x4+7x5=0 3X1+2x2+x3+x4-3xs=0 x2+2x3+2x4+6x5=0 5x1+4x2+3x3+3x4-x5=0 Solution 12337 123 3 3211-3||04-8-8-24 01226 012 5433-1 0-6-12-12-36 K心ex1. 求解下列方程组 + + + − = + + + = + + + − = + + + + = 5 4 3 3 0 2 2 6 0 3 2 3 0 2 3 3 7 0 1 2 3 4 5 2 3 4 5 1 2 3 4 5 1 2 3 4 5 x x x x x x x x x x x x x x x x x x x Solution. − − = 5 4 3 3 1 0 1 2 2 6 3 2 1 1 3 1 2 3 3 7 A − − − − − − − − → 0 6 12 12 36 0 1 2 2 6 0 4 8 8 24 1 2 3 3 7