Add and Subtract Matrices
-Let $A = \left[ \begin{array} { r } 3 \\ - 5 \\ - 4 \end{array} \right]$

question 49

Multiple Choice

Add and Subtract Matrices
-Let $A = \left[ \begin{array} { r } 3 \\ - 5 \\ - 4 \end{array} \right]$ and $B = \left[ \begin{array} { r } - 5 \\ 3 \\ 9 \end{array} \right]$ . Find $A + B$ .

• A)
• \(\left[ \begin{array} { r } - 2 \\ - 2 \\ 5 \end{array} \right]\)
• B)
• \(\left[ \begin{array} { l l l } - 2 & - 2 & 5 \end{array} \right]\)
• C)
• \(\left[ \begin{array} { r r } 3 & - 5 \\ - 5 & 3 \\ - 4 & 9 \end{array} \right]\)
• D)
• \(\left[ \begin{array} { l } 2 \\ 5 \\ 6 \end{array} \right]\)

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