T(E_{1})=\begin{pmatrix} 0 & 2 \\ -4 & 0 \end{pmatrix}
\\
\\ T(E_{2})=\begin{pmatrix} 4 & 0 \\ 0 & -4 \end{pmatrix}
\\
\\T(E_{3})=\begin{pmatrix} -2 & 0 \\ 0 & 2 \end{pmatrix}
\\
\\ T(E_{4})=\begin{pmatrix} 0 & -2 \\ 4 & 0 \end{pmatrix}{