Find the Indicated Matrix $C = \left[ \begin{array} { r } 1 \\ - 3 \\ 2 \end{array} \right]$

Find the indicated matrix.
-Let $C = \left[ \begin{array} { r } 1 \\ - 3 \\ 2 \end{array} \right]$ and $D = \left[ \begin{array} { r } - 1 \\ 3 \\ 2 \end{array} \right]$ . Find $C - 2 D$ .

A)
$$\left[ \begin{array} { r } - 3 \\9 \\2\end{array} \right]$$

B)
$$\left[ \begin{array} { r } - 1 \\3 \\- 2\end{array} \right]$$

C)
$$\left[ \begin{array} { r } 3 \\- 9 \\- 2\end{array} \right]$$

D)
$$\left[ \begin{array} { r } 3 \\- 6 \\4\end{array} \right]$$

Correct Answer:

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