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If $A=\begin{bmatrix}a_{11}&a_{12}\\a_{21} &… | ClassNotes
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Sep 18, 2022
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If $A=\begin{bmatrix}a_{11}&a_{12}\\a_{21} & a_{22}\\\end{bmatrix}$ then |A|=
Difficulty: Easy
A:
$a_{11}a_{22}-a_{12}a_{21}$
B:
$a_{12}a_{21}-a_{11}a_{12}$
C:
$a_{11}a_{22}+a_{12}a_{21}$
D:
$a_{11}a_{22}-a_{21}a_{12}$
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ID: 63273dbaca83163ac3a11ca3
