Find the Value of the Determinant $$\left| \begin{array} { r r } - 6 & 9 \\- 7 & - 1\end{array} \right|$$

question 268

Multiple Choice

Find the value of the determinant.
- $$\left| \begin{array} { r r } - 6 & 9 \\- 7 & - 1\end{array} \right|$$

• A) -57
• B) -69
• C) 69
• D) -61

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