Find the Indicated Matrix $A = \left[ \begin{array} { r r r } 3 & - 2 & 1 \\ 0 & 4 & - 2 \end{array} \right]$

question 8

Multiple Choice

Find the indicated matrix.
-Let $A = \left[ \begin{array} { r r r } 3 & - 2 & 1 \\ 0 & 4 & - 2 \end{array} \right]$ and $B = \left[ \begin{array} { r r } 3 & 0 \\ - 2 & 1 \end{array} \right]$ . Find $A B$ .

• A) \(\left[ \begin{array} { r r } 9 & - 6 \\ - 6 & 8 \\ 3 & - 4 \end{array} \right]\)
• B) \(\left[ \begin{array} { l l } 9 & 0 \\ 0 & 4 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r r } 9 & - 6 & 3 \\ - 6 & 8 & - 4 \end{array} \right]\)
• D) not defined

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