Cho ánh xạ tuyến tính \[f\left( {x,y,z} \right) = \left( {x + 3y + 4z,x - 7z} \right)\]thì ma trận chính tắc của nó là:

\[A = \left( {\begin{array}{*{20}{c}}\begin{array}{l}1\\3\\4\end{array}&\begin{array}{l}1\\0\\ - 7\end{array}\end{array}} \right)\]

\[A = \left( {\begin{array}{*{20}{c}}\begin{array}{l}1\\1\end{array}&\begin{array}{l}3\\0\end{array}&\begin{array}{l}4\\ - 7\end{array}\end{array}} \right)\]

\[A = \left( {\begin{array}{*{20}{c}}\begin{array}{l}2\\ - 8\end{array}&\begin{array}{l} - 1\\4\end{array}\end{array}} \right)\]

\[A = \left( {\begin{array}{*{20}{c}}\begin{array}{l}2\\ - 8\end{array}&\begin{array}{l} - 1\\4\end{array}&\begin{array}{l}4\\ - 7\end{array}\end{array}} \right)\]