Evaluate $2 \times 2$ Determinant $$\left| \begin{array} { r r } 4 & - 6 \\7 & - 4\end{array} \right|$$

question 97

Short Answer

Evaluate $2 \times 2$ determinant. $$\left| \begin{array} { r r } 4 & - 6 \\7 & - 4\end{array} \right|$$ Please enter your answer as a number.

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