E
Editor
Sep 18, 2022
Determinant of $\begin{bmatrix}2a& 2b&2c\\a+b & 2b & b+c\\a+c&b+c&2c \end{bmatrix}$=
Difficulty: Easy
A:
0
B:
(a+b)(b+c)(c+a)
C:
2(a+b)(b+c)(c+a)
D:
2(abc)
ID: 63273dbaca83163ac3a11db7