$|{\mathop{\rm adj}\nolimits} A| = |A{|^2}$, where $A$ is a square matrix of order two.
Correct Answer False
$|{\mathop{\rm adj}\nolimits} A| = |A{|^2}$, where $A$ is a square matrix of order two.
Correct Answer False
Official Solution
VVidaara Team
✓ Verified solution
NCERT & Exemplar
If $A$ is a square matrix of order $n$, then
$|{\mathop{\rm adj}\nolimits} A| = |A{|^{n - 1}}$
$\Rightarrow$ $|{\mathop{\rm adj}\nolimits} A| = |A{|^{2 - 1}} = |A|$
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