Find the Indicated Matrix Product or State That the Product

question 324

Multiple Choice

Find the indicated matrix product or state that the product is undefined.
- $$A = \left[ \begin{array} { r r } 1 & 2 \\- 4 & 8\end{array} \right] , B = \left[ \begin{array} { r r r } - 7 & - 4 & - 7 \\1 & 6 & - 6\end{array} \right]$$
BA

• A)
• \(\left[\begin{array}{rrr}
• -5 & 8 & -19 \\
• 36 & 64 & -20
• \end{array}\right]\)
• B)
• \(\left[\begin{array}{rrr}
• -7 & -4 & -14 \\
• -4 & 6 & -48
• \end{array}\right]\)
• C)
• \(\left[\begin{array}{cc}
• -7 & -8 \\
• -4 & 48
• \end{array}\right]\)
• D) Undefined

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