来自曲和政的问题
用克莱姆法则求解下列两个方程组要保证正确啊!2x1+x2-x3=1x1+2x2+x3=2x1+x2+2x3=3x1+x2+2X3+3x4=13x1+x2-x3-2x4=-42x1-3x2-x3-x4=-6x1+2x2+3x3-x4=-4
用克莱姆法则求解下列两个方程组
要保证正确啊!2x1+x2-x3=1x1+2x2+x3=2x1+x2+2x3=3x1+x2+2X3+3x4=13x1+x2-x3-2x4=-42x1-3x2-x3-x4=-6x1+2x2+3x3-x4=-4
1回答
2019-10-24 19:26