求向量组a1=(2,1,4,3),a2=(-1,1,-6,6),a3=(-1,-2,2,-9),a4=(1,1,-2,7
向量组(1)a1,a2,a3(2)a1,a2,a3,a4(3)a1,a2,a3,a5 R(1)=R(2)=3,R(3)=
设矩阵A=(a1,a2,a3,a4)其中a2,a3,a4线性无关,a1=2a2-a3,向量b=a1+a2+a3+a4,求
三个正整数a1,a2,a3,且a1+a2+a3=a1×a2×a3,a1≥1,a2≥2,a3≥3,求a1,a2,)
求向量组a1=(2,1,4,3),a2=(-1,1,-6,6),a3=(-1,-2,2,-9),a4=(1,1,-2,7
求向量组a1=(1,2,1,3),a2=(4,-1,-5,-6),a3=(1,-3,-4,-7),a4=(3,6,3,9
已知a1=(1,1,1) ,a2=(0,2,5) ,a3=(2,4,7) ,试讨论向量组a1,a2,a3 及a1,a2
已知(x-1)^5=a5x^5+a4^4+a3^3+a2^2+a1^1+a0,则a5+a4+a3+a2+a1+a0=?,
求向量组a1=(1,-1,2,4),a2=(0,3,1,2),a3=(1,8,5,10),a4=(2,-5,3,6),a
已知整数a1,a2,a3,a4,…满足下列条件:a1=0,a2=-|a1+1|,a3=-|a2+2|,a4=-|a3+3
设A=(a1,a2,a3,a4),ai(i=1,2,3,4)为5维向量,若a2,a3,a4线性无关,且a4=a1+2a2
设向量 组a1=(1,2,1,3),a2=(4,-1,-5,-6),a3=(1,-3,-4,-7),a4=(2,1,-1
设a1,a2,a3,a4为四维向量,A=(a1,a2,a3,a4)已知通解X=k(1,0,1,0)^T ,求向量组的a1