Find the Matrix Product AB, If It Is Defined A) $A B$

question 58

Multiple Choice

Find the matrix product AB, if it is defined.
- $$A = \left[ \begin{array} { r r r } 3 & - 2 & 1 \\0 & 4 & - 1\end{array} \right] , B = \left[ \begin{array} { r r } 4 & 0 \\- 2 & 2\end{array} \right] \text {. }$$

• A) \(A B\) is undefined.
• B)
• \[\left[ \begin{array} { r r }
• 12 & 0 \\
• 0 & 8
• \end{array} \right]\]
• C)
• \[\left[ \begin{array} { r r }
• 12 & - 6 \\
• - 8 & 12 \\
• 4 & - 4
• \end{array} \right]\]
• D)
• \[\left[ \begin{array} { r r r }
• 12 & - 8 & 4 \\
• - 6 & 12 & - 4
• \end{array} \right]\]

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