2. Compute the determinant of the matrix by cofactor expansion. $\begin{bmatrix} 3 & 2 & -5 \\ 5 & -4 & 3 \\ -3 & 4 & -2 \end{bmatrix}$ A. -14 B. -50 C. -130 D. 50
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$$\begin{vmatrix} 3 & 2 & -5 \\ 5 & -4 & 3 \\ -3 & 4 & -2 \end{vmatrix} = 3\begin{vmatrix} -4 & 3 \\ 4 & -2 \end{vmatrix} - 2\begin{vmatrix} 5 & 3 \\ -3 & -2 \end{vmatrix} - 5\begin{vmatrix} 5 & -4 \\ -3 & 4 \end{vmatrix}$$ Show more…
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