Perform the Indicated Operation, Whenever Possible $A = \left[ \begin{array} { r r r } - 4 & 6 & 7 \\ 3 & - 5 & 12 \\ 7 & - 11 & 14 \end{array} \right]$

question 50

Multiple Choice

Perform the indicated operation, whenever possible.
-Let $A = \left[ \begin{array} { r r r } - 4 & 6 & 7 \\ 3 & - 5 & 12 \\ 7 & - 11 & 14 \end{array} \right]$ and $B = \left[ \begin{array} { r r r } 6 & 10 & - 4 \\ - 5 & 6 & - 8 \\ 3 & 11 & 7 \end{array} \right]$ . Find $A - B$ .

• A) \(\left[ \begin{array} { r r r } - 10 & - 4 & 3 \\ - 2 & - 11 & 4 \\ 4 & - 22 & 7 \end{array} \right]\)
• B) \(\left[ \begin{array} { r r r } 2 & 16 & 3 \\ - 2 & 1 & 4 \\ 10 & 0 & 21 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r r } - 10 & - 4 & 11 \\ 8 & - 11 & 20 \\ 4 & - 22 & 7 \end{array} \right]\)
• D) \(\left[ \begin{array} { c c c } 10 & 4 & - 11 \\ - 8 & 11 & - 20 \\ - 4 & 22 & - 7 \end{array} \right]\)

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