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CUET
-- Mathematics - Section B1
Determinants
For any $2 \times 2$ matrix, if $A(a d j A)=\left[\begin{array}{cc}100 & 0 \\ 0 & 100\end{array}\right]$, then $|A|$ is equal to:
10
20
100
1000
The correct answer is Option (3) → 100