Perform the Indicated Matrix Operations $A = \left[ \begin{array} { r r r } - 6 & - 6 & - 3 \\ - 3 & 2 & - 8 \\ 5 & - 2 & - 7 \end{array} \right]$

question 143

Multiple Choice

Perform the indicated matrix operations.
-Let $A = \left[ \begin{array} { r r r } - 6 & - 6 & - 3 \\ - 3 & 2 & - 8 \\ 5 & - 2 & - 7 \end{array} \right]$ and $B = \left[ \begin{array} { r r r } - 5 & - 5 & - 1 \\ 7 & - 6 & 1 \\ 1 & - 5 & - 2 \end{array} \right]$ . Find 2A - 2B.

• A) \(\left[ \begin{array} { r r r } - 11 & 4 & 6 \\ - 11 & - 4 & - 7 \\ - 4 & - 7 & - 9 \end{array} \right]\)
• B) \(\left[ \begin{array} { r r r } - 11 & - 11 & - 4 \\ 4 & - 4 & - 7 \\ 6 & - 7 & - 9 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r r } - 17 & - 17 & - 7 \\ 1 & - 2 & - 15 \\ 11 & - 9 & - 16 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r r } - 2 & - 2 & - 4 \\ - 20 & 16 & - 18 \\ 8 & 6 & - 10 \end{array} \right]\)

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