Tìm x, y, z sao cho ma trận \[A = \left( {\begin{array}{*{20}{c}}{\frac{1}{3}}&{\frac{2}{3}}&{\frac{2}{3}}\\x&y&z\\0&{\frac{1}{{\sqrt 2 }}}&{\frac{{ - 1}}{{\sqrt 2 }}}\end{array}} \right)\] l

\[x = \frac{2}{3},y = \frac{{ - 1}}{3},z = \frac{1}{3}\]

\[x = \frac{4}{{3\sqrt 2 }},y = \frac{{ - 1}}{{3\sqrt 2 }},z = \frac{{ - 1}}{{3\sqrt 2 }}\]

\[x = \frac{{ - 4}}{{3\sqrt 2 }},y = \frac{1}{{3\sqrt 2 }},z = \frac{{ - 1}}{{3\sqrt 2 }}\]

\[x = - 4\sqrt 2 ,y = \sqrt 2 ,z = \sqrt 2 \]