Question

Compute the determinant of :
∣−1−4∣
∣−1−2∣

a. 8
b. 4
c. 3
d. -2

Answer 1

Answer on Question # 41340 – Math - Real Analysis

Compute the determinant of: $\left| \begin{array}{cc} -1 & -4 \\ -1 & -2 \end{array} \right|$.

Solution:

$$\left| \begin{array}{cc} -1 & -4 \\ -1 & -2 \end{array} \right| = (-1)(-2) - (-1)(-4) = 2 - 4 = -2.$$

Answer:

d. -2

http://www.AssignmentExpert.com