Evaluate.
-$$\left| \begin{array} { r r r }
- 2 & 5 & 4 \
3 & - 2 & 1 \
1 & 6 & - 3
\end{array} \right|$$
A) $- 12$
B) 130
C) $- 90$
D) 80

Name: Evaluate. -\[\left| \begin{array} { r r r } - 2 & 5 & 4 \\ 3 & - 2 & 1 \\ 1 & 6 & - 3 \end{array} \right|\] A) $- 12$ B) 130 C) $- 90$ D) 80
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Question

Evaluate.
-$$\left| \begin{array} { r r r } 
- 2 & 5 & 4 \
3 & - 2 & 1 \
1 & 6 & - 3
\end{array} \right|$$
A) $- 12$
B) 130
C) $- 90$
D) 80

Quizplus · Accepted Answer

The determinant of the given 3x3 matrix can be calculated using the formula for determinants. After performing the calculations, the determinant is found to be 130.

Evaluate - ∣−2543−2116−3∣\left| \begin{array} { r r r } - 2 & 5 & 4 \\3 & - 2 & 1 \\1 & 6 & - 3\end{array} \right|​−231​5−26​41−3​​

Evaluate
- $\left| \begin{array} { r r r } - 2 & 5 & 4 \\3 & - 2 & 1 \\1 & 6 & - 3\end{array} \right|$