E
Editor
Sep 18, 2022
If $A=\begin{bmatrix}1 & 5 -3 \\2 & 7-1 \end{bmatrix}$ then element $a_{23}$ is
Difficulty: Easy
A:
-7
B:
-6
C:
-1
D:
6
ID: 63273db9ca83163ac3a11a33