Find the Determinant of the Given Matrix $$\left[ \begin{array} { r r r } 1 & 0 & 0 \\7 & - 3 & 0 \\- 3 & 7 & 7\end{array} \right]$$

question 218

Multiple Choice

Find the determinant of the given matrix.
- $$\left[ \begin{array} { r r r } 1 & 0 & 0 \\7 & - 3 & 0 \\- 3 & 7 & 7\end{array} \right]$$

• A) 21
• B) \(- 28\)
• C) \(- 21\)
• D) \(- 70\)

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