Find 6A​ $$A = \left[ \begin{array} { l l } 1 & - 1 \\1 & - 1\end{array} \right]$$

Multiple Choice

Find 6A.​ $$A = \left[ \begin{array} { l l } 1 & - 1 \\1 & - 1\end{array} \right]$$ ​

A) $\left[ \begin{array} { l l } 6 & - 6 \\6 & - 6\end{array} \right]$
B) $\left[ \begin{array} { l l } 8 & - 6 \\6 & - 6\end{array} \right]$
C) $\left[ \begin{array} { c c } 10 & - 6 \\- 6 & 6\end{array} \right]$
D) $\left[ \begin{array} { l l } 4 & - 6 \\6 & - 6\end{array} \right]$
E) $\left[ \begin{array} { l l } 2 & - 6 \\6 & - 6\end{array} \right]$