Find the value of the determinant.
-$$\left| \begin{array} { r r }
12 & - 7 \
- 4 & 3
\end{array} \right|$$
A) 64
B) 4
C) 8
D) -8

Name: Find the value of the determinant. -\[\left| \begin{array} { r r } 12 & - 7 \\ - 4 & 3 \end{array} \right|\] A) 64 B) 4 C) 8 D) -8
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Question

Find the value of the determinant.
-$$\left| \begin{array} { r r } 
12 & - 7 \
- 4 & 3
\end{array} \right|$$
A) 64
B) 4
C) 8
D) -8

Quizplus · Accepted Answer

The determinant of a 2x2 matrix is calculated as ad - bc. For the given matrix, a = 12, b = -7, c = -4, and d = 3. Thus, the determinant is (12*3) - (-7*-4) = 36 - 28 = 8.

Find the Value of the Determinant ∣12−7−43∣\left| \begin{array} { r r } 12 & - 7 \\- 4 & 3\end{array} \right|​12−4​−73​​

Find the Value of the Determinant $\left| \begin{array} { r r } 12 & - 7 \\- 4 & 3\end{array} \right|$