已知向量组alpha_(1),alpha_(2),alpha_(3)线性无关，若alpha_(1)+alpha_(2),alpha_(2)+alpha_(3),
4.判断题向量β被向量组alpha_(1),alpha_(2),...,alpha_(n)线性表示，记A=[alpha_(1),alpha_(2),...,al
1.单选题已知向量组alpha_(1),alpha_(2),alpha_(3)线性无关，则A. 向量组$\alpha_{1},\alpha_{1}-\alpha
3.判断题设向量beta可由向量组alpha_(1),alpha_(2),alpha_(3),alpha_(4)线性表示，但不能由alpha_(1),alpha
4.(判断题) 向量组满足 beta_(1)=alpha_(1), beta_(2)=alpha_(1)+alpha_(2), beta_(3)=alpha_(
已知向量组alpha_(1),alpha_(2),alpha_(3)线性无关，证明：alpha_(1)+2alpha_(2),2alpha_(1)+3alpha
设n维向量组alpha_(1),alpha_(2),...,alpha_(m)线性无关，则以下说法错误的是A. 向量组中增加一个向量仍线性无关B. 向量组中减少
9、填空 向量组alpha_(1)=(1,1,2,-2),alpha_(2)=(1,3,-x,-2x),alpha_(3)=(1,-1,6,0)的秩为2，则x=
8 填空 向量组alpha_(1)=(1,1,2,-2),alpha_(2)=(1,3,-x,-2x),alpha_(3)=(1,-1,6,0)的秩为2，则x
4.求向量组alpha_(1)=(1,1,2,3),alpha_(2)=(1,-1,1,1),alpha_(3)=(1,3,3,5),alpha_(4)=(4,