# linear algebra

The vectors were $<0,0,0,1>, \ <0,0,2,1>, \ <0,3,2,1>, \ <0,1,-1,1>$.
It should be $A^{T}$ from post #3. But $\det A = \det A^{T} = 0$. So they are linearly dependent. But I think the problem hes having is that he keeps get the trivial solution.