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| 1. |
\left[ \begin{array} { c c } { x + y } & { 2 } \\ { 5 + z } & { x y } \end{array} \right] = \left[ \begin{array} { c c } { 6 } & { 2 } \\ { 5 } & { 8 } \end{array} \right] |
| Answer» | |