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Evaluate the Determinant ∣−874−2∣\left| \begin{array} { r r } - 8 & 7 \\4 & - 2\end{array} \right|

Question 218

Short Answer

Evaluate the determinant. ∣−874−2∣\left| \begin{array} { r r } - 8 & 7 \\4 & - 2\end{array} \right|

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