One of the eigenvectors of the matrix \(\left[ {\begin{array}{*{20}{c}} { - 5}&2\\ { - 9}&6 \end{array}} \right]\) is
1
\(\left\{ {\begin{array}{*{20}{c}} { - 1}\\ 1 \end{array}} \right\}\)
2
\(\left\{ {\begin{array}{*{20}{c}} { - 2}\\ 9 \end{array}} \right\}\)
3
\(\left\{ {\begin{array}{*{20}{c}} 2\\ { - 1} \end{array}} \right\}\)
4
\(\left\{ {\begin{array}{*{20}{c}} 1\\ 1 \end{array}} \right\}\)