Find a - B ​
A) $$\left[ \begin{array} { c c c } 1 & 0 & - 7 \\0 & - 5 & - 5 \\9 & 6 & 8\end{array} \right]$$

Find A - B.​ $$A = \left[ \begin{array} { l l l } 4 & 9 & 2 \\6 & 3 & 2 \\9 & 6 & 8\end{array} \right] , B = \left[ \begin{array} { l l l } 3 & 9 & 9 \\6 & 8 & 7 \\7 & 7 & 8\end{array} \right]$$ ​

A) $$\left[ \begin{array} { c c c } 1 & 0 & - 7 \\0 & - 5 & - 5 \\9 & 6 & 8\end{array} \right]$$ ​
B) $$\left[ \begin{array} { c c c } 4 & 9 & 2 \\6 & 8 & 7 \\2 & - 1 & 0\end{array} \right]$$ ​
C) $$\left[ \begin{array} { c c c } 1 & 0 & - 7 \\6 & 8 & 7 \\2 & - 1 & 0\end{array} \right]$$ ​
D) $$\left[ \begin{array} { c c c } 1 & 0 & - 7 \\0 & - 5 & - 5 \\2 & - 1 & 8\end{array} \right]$$ ​
E) $$\left[ \begin{array} { c c c } 1 & 0 & - 7 \\0 & - 5 & - 5 \\2 & - 1 & 0\end{array} \right]$$ ​

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