E
Editor
Sep 18, 2022
If $A=\begin{bmatrix}a & b \\c & d \end{bmatrix}$ and k is a scalar then kA=
Difficulty: Easy
A:
$\begin{bmatrix}ka & kb \\kc & kd \end{bmatrix}$
B:
$\begin{bmatrix}kd & -kb \\-ka & d \end{bmatrix}$
C:
$\begin{bmatrix}ka & kb \\c & d \end{bmatrix}$
D:
$\begin{bmatrix}ka & b \\kc & d \end{bmatrix}$
ID: 63273dbaca83163ac3a11bb3