Find the Dimension of the Matrix $$\left[ \begin{array} { r r r } - 7 & 0 & 0 \\- 9 & - 7 & 0 \\- 2 & 4 & - 7\end{array} \right]$$

question 455

Multiple Choice

Find the dimension of the matrix.
- $$\left[ \begin{array} { r r r } - 7 & 0 & 0 \\- 9 & - 7 & 0 \\- 2 & 4 & - 7\end{array} \right]$$

• A) 9
• B) \(- 7\)
• C) \(3 \times 0\)
• D) \(3 \times 3\)

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