Evaluate the Determinant $\left| \begin{array} { c c } 9 & 8 \\- 2 & 8\end{array} \right|$

question 30

Short Answer

Evaluate the determinant.
$\left| \begin{array} { c c } 9 & 8 \\- 2 & 8\end{array} \right|$

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