A.7
B.8
C.9
D.10
[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)=--
[单选题]已知A(1)=1,A(2)=2,A(3)=6,A(4)=8则A(A(1)+A(2))=()。A . 8B . 6C . 2D . 1
[主观题]1,2,2,6,3,15,3,21,4,()A.46;B.20;C.12;D.44;
[单选题]1,2,2,6,3,15,3,21,4,()A . 46B . 20C . 12D . 44
[单选题]2,3,4,1,6,-1,( )A.5 B.6 C.7 D.8
[单选题]2,3,4,1,6,-1,( )A.5B.6C.7D.8
[单选题]2,3,4,1,6,-1,( )A.5 B.6C.7 D.8
[试题]设向量组α1=(1,2,3,6),α2=(1,-1,2,4),α3=(-1,1,-2,-8),α4=(1,2,3,2).(1)求该向量组的一个极大线性无关组;