E
Editor
Sep 18, 2022
Find the cofactor of 1 in the matrix $A = \begin{bmatrix}1 & 3 \\2 & 4 \end{bmatrix}$
Difficulty: Easy
A:
$1$
B:
$-1$
C:
$4$
D:
$-4$
ID: 63273dbaca83163ac3a11e5f