678184020524002171840100501301000300371310517105170100001005171010000410
秩为3
2
f103014
001025
41025013603143206327701
001025
41025013603132806286101
0010010306
412503609180183601
00141025013600000000
秩为32求下列各方程组的系数矩阵和增广矩阵的秩
x18x27x3122x3x5x723（1）14x13x29x392x15x28x38
解对增广矩阵作初等行变换
124287121871218712135701391701911039903150124058802310231018712019110011000087121911077077
系数矩阵与增广矩阵秩均为3
x1x22x32x412xx35x41（2）13x3x442x1x1x24x41
解对增广矩阵作初等行变换
12211201102541110401021136543111221231302313215200265022200222122
031
211023002000
系数矩阵与增广矩阵的秩均为4
3
f习题23
1解下列各非齐次线性方程组
2x1x2x33（1）3x1x25x30xxx3123
解对方程组增广矩阵作初等行变换
311132113111311131503150048901131113211301130043
010001015400134
原方程组有r