Find the Indicated Sum or Difference, If It Is Defined $$\left[ \begin{array} { l l } 5 & 4\end{array} \right] + \left[ \begin{array} { r } - 1 \\5\end{array} \right]$$

question 72

Multiple Choice

Find the indicated sum or difference, if it is defined.
- $$\left[ \begin{array} { l l } 5 & 4\end{array} \right] + \left[ \begin{array} { r } - 1 \\5\end{array} \right]$$

• A) \(\left[ \begin{array} { l l } 4 & 9 \end{array} \right]\)
• B) not defined
• C) \(\left[ \begin{array} { l } 4 \\ 9 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r } 5 & - 1 \\ 4 & 5 \end{array} \right]\)

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