For the matrix
\(\rm [A]=\begin{bmatrix}1&-1&0\\\ -1&2&-1\\\ 0&-1&1\end{bmatrix}\)
which of the following statements is/are TRUE?
1
[π΄]{π₯} = {π} has a unique solution
2
[π΄]{π₯} = {π} does not have a unique solutionΒ
3
[π΄] has three linearly independent eigenvectors
4
[π΄] is a positive definite matrix