Evaluate each determinant.
(a) $\operatorname{det}\left[\begin{array}{rr}-6 & 9 \ 4 & -5\end{array}\right]$
(b) $\operatorname{det}\left[\begin{array}{rrr}2 & 0 & -2 \ 3 & 1 & 5 \ 6 & 4 & 3\end{array}\right]$

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The Answer of Evaluate each determinant.
(a) $\operatorname{det}\left[\begin{array}{rr}-6 & 9 \ 4 & -5\end{array}\right]$
(b) $\operatorname{det}\left[\begin{array}{rrr}2 & 0 & -2 \ 3 & 1 & 5 \ 6 & 4 & 3\end{array}\right]$

Evaluate Each Determinant det⁡[−694−5]\operatorname{det}\left[\begin{array}{rr}-6 & 9 \\ 4 & -5\end{array}\right]det[−64​9−5​] (B) det⁡[20−2315643]\operatorname{det}\left[\begin{array}{rrr}2 & 0 & -2 \\ 3 & 1 & 5 \\ 6 & 4 & 3\end{array}\right]det​236​014​−253​​

Evaluate Each Determinant $\operatorname{det}\left[\begin{array}{rr}-6 & 9 \\ 4 & -5\end{array}\right]$ (B) $\operatorname{det}\left[\begin{array}{rrr}2 & 0 & -2 \\ 3 & 1 & 5 \\ 6 & 4 & 3\end{array}\right]$