A.5
B.6
C.7
D.8
[单选题]2,3,4,1,6,-1,( )A.5 B.6C.7 D.8
[单选题]2,3,4,1,6,-1,( )A.5B.6C.7D.8
计算:(1)(-1)100×5+(-2)4÷4;(2)(-3)3-3×(-(1)/(3))4;(3)(7)/(6)×((1)/(6)-(1)/(3))×(3)/
[主观题]1/21/31/41/61/12
设1 1 1 1-|||-2 4 3 1-|||-3 5 2 4-|||-4 6 3 5,则齐次线性方程组1 1 1 1-|||-2 4 3 1-|||-3 5
[问答题]设向量组α1=(1,2,3,4),α2=(2,3,4,5,),α3=(3,4,5,6),α4=(4,5,6,7),则秩(α1,α2,α3,α4)=--
[问答题]设向量组α1=(1,2,3,4),α2=(2,3,4,5,),α3=(3,4,5,6),α4=(4,5,6,7),则秩(α1,α2,α3,α4)=--
[问答题]设向量组α1=(1,2,3,4),α2=(2,3,4,5,),α3=(3,4,5,6),α4=(4,5,6,7),则秩(α1,α2,α3,α4)=--
|1 2 3 4-|||-4 3 2 1-|||-计算4阶行列式: 0 -1 2 3 __-|||-=-|||-1 6 3 2
已知矩阵1 2 -3-|||-A= 2 2 -2-|||-__ -1 -4 6,计算1 2 -3-|||-A= 2 2 -2-|||-__ -1 -4 6 (