Find the Indicated Matrix $A = \left[ \begin{array} { r r r } 1 & 3 & - 2 \\ 3 & 0 & 5 \end{array} \right]$

question 3

Multiple Choice

Find the indicated matrix.
-Let $A = \left[ \begin{array} { r r r } 1 & 3 & - 2 \\ 3 & 0 & 5 \end{array} \right]$ and $B = \left[ \begin{array} { r r } 3 & 0 \\ - 2 & 1 \\ 0 & 5 \end{array} \right]$ . Find $A B$ .

• A) \(\left[ \begin{array} { r r } - 7 & - 3 \\ 25 & 9 \end{array} \right]\)
• B) \(\left[ \begin{array} { r r r } 3 & - 6 & 0 \\ 0 & 0 & 25 \end{array} \right]\)
• C) not defined
• D) \(\left[ \begin{array} { r r } - 3 & - 7 \\ 9 & 25 \end{array} \right]\)

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