Evaluate the determinant.
-$\left| \begin{array} { l l l } 2 & 0 & 0 \ 3 & 7 & 8 \ 7 & 9 & 8 \end{array} \right|$
A) $- 32$
B) 256
C) 32
D) $- 27$

Question

Quizplus · Accepted Answer

The determinant is calculated as follows:$\left| \begin{array} { l l l } 2 & 0 & 0 \ 3 & 7 & 8 \ 7 & 9 & 8 \end{array} \right|$ = $2\left| \begin{array} { l l } 7 & 8 \ 9 & 8 \end{array} \right|$ = $2[(7\times8)-(9\times8)]$ = $2[56-72]$ = $-32$

Evaluate the Determinant ∣200378798∣\left| \begin{array} { l l l } 2 & 0 & 0 \\ 3 & 7 & 8 \\ 7 & 9 & 8 \end{array} \right|​237​079​088​​

Evaluate the Determinant $\left| \begin{array} { l l l } 2 & 0 & 0 \\ 3 & 7 & 8 \\ 7 & 9 & 8 \end{array} \right|$