Solved

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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