Question 10.4.1: Calculating the Determinant of a 2 × 2 Matrix Evaluate each ...

Precalculus A Right Triangle Approach

Calculating the Determinant of a 2 × 2 Matrix

Evaluate each determinant.

a. $\left|\begin{array}{rr}3 & -4 \\1 & 5\end{array}\right|$ b. $\left|\begin{array}{rr}-2 & 3 \\4 & -5\end{array}\right|$

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