求向量组 =a1(1,1,2,-1),a2=(3,4,2,2),a3=(2,3,4,-3),a4 =(5,6,6,0)的
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
已知(x-1)^5=a5x^5+a4^4+a3^3+a2^2+a1^1+a0,则a5+a4+a3+a2+a1+a0=?,
三个正整数a1,a2,a3,且a1+a2+a3=a1×a2×a3,a1≥1,a2≥2,a3≥3,求a1,a2,)
向量组(1)a1,a2,a3(2)a1,a2,a3,a4(3)a1,a2,a3,a5 R(1)=R(2)=3,R(3)=
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
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
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
设矩阵A=[a1.a2.a3.a4],其中a2.a3.a4线性无关,a1=2a3-3a4.向量b=a1+2a2+3a3+
求向量组a1=(2,1,4,3),a2=(-1,1,-6,6),a3=(-1,-2,2,-9),a4=(1,1,-2,7
已知a1,a2,a3,a4,a5,1,2,3,4,5的平均数为4,则a1,a2,a3,a4,a5的平均数是( )
在P^4中,求向量b在基a1,a2,a3,a4下的坐标.设,a1=(1,1,0,1),a2=(2,1,3,1),a3=(