Question

设向量组a1=(1,0,1),a2=(-1,1,2),a3=(0,1,a)线性相关,求a

Answer 1

a=3

向量组a1=(1,0,1),a2=(-1,1,2),a3=(0,1,a)线性相关

(0,1,a)=C1(1,0,1)+C2(-1,1,2)

C1=C2=1