题目

6.求解下列齐次线性方程组.-|||-(1) ) (x)_(1)+(x)_(2)+2(x)_(3)-(x)_(4)=0, 2(x)_(1)+(x)_(2)+(x)_(3)-(x)_(4)=0, 2(x)_(1)+2(x)_(2)+(x)_(3)+ .

题目解答

答案