Let \(A = \left( {\begin{array}{*{20}{c}} 1&{ - 1}\\ 0&1 \end{array}} \right)\) then which of the following statements is/are true?
1
The Eigenvalue of A are 1, 1
2
A linearly Eigenvector is \(\left( {\begin{array}{*{20}{c}} 1\\ 0 \end{array}} \right)\)
3
A is non-singular
4
A is diagonalizable