A) \[|A{{|}^{n}}\]
B) \[|A{{|}^{2}}\]
C) \[|A{{|}^{n-1}}I\]
D) \[|A{{|}^{n-2}}A\]
Correct Answer: B
Solution :
We know that, \[adj(adj\,A)=|A{{|}^{n-2}}.A\]
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