Find the Indicated Matrix Product or State That the Product

question 281

Multiple Choice

Find the indicated matrix product or state that the product is undefined.
- $$A = \left[ \begin{array} { l l l l } 0 & 0 & 1 & 0 \\0 & 0 & 0 & 1 \\1 & 0 & 0 & 0 \\0 & 1 & 0 & 0\end{array} \right] , B = \left[ \begin{array} { r r r r } - 5 & 9 & 6 & 4 \\8 & 4 & 9 & 8 \\7 & - 1 & 5 & 0 \\0 & - 2 & 4 & - 1\end{array} \right]$$
BA

• A)
• \[\left[ \begin{array} { r r r r }
• 0 & 0 & 6 & 0 \\
• 0 & 0 & 0 & 8 \\
• 7 & 0 & 0 & 0 \\
• 0 & - 2 & 0 & 0
• \end{array} \right]\]
• B)
• \(\left[\begin{array}{rrrr}
• 7 & -1 & 5 & 0 \\
• 0 & -2 & 4 & -1 \\
• -5 & 9 & 6 & 4 \\
• 8 & 4 & 9 & 8
• \end{array}\right]\)
• C)
• \(\left[\begin{array}{rrrr}
• 6 & 4 & -5 & 9 \\
• 9 & 8 & 8 & 4 \\
• 5 & 0 & 7 & -1 \\
• 4 & -1 & 0 & -2
• \end{array}\right]\)
• D)
• \(\left[\begin{array}{rrrr}
• -5 & 9 & 6 & 4 \\
• 8 & 4 & 9 & 8 \\
• 7 & -1 & 5 & 0 \\
• 0 & -2 & 4 & -1
• \end{array}\right]\)

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