Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Let 
. If |adj(adj(adj2A))|= (16) n , then n is equal to
Text Solution
Verified by ExpertsThe correct answer is:
B
Given that 
and |adj(adj(adj2A))|= 16 n .
We know that |adjA|= |A| n-1 and |adj(adjA)|=|A| (n-1)2
Similarly, |adj(adj(adjA))|= 
where n is the order of the square matrix.
Let us find |A|.
|A|= 2(2 x 2 -(-1)(-1))-1(1 x 2 - 0(-1))+0(1 x(-l)-0 x 2)
= 2(c)- +0 = 4
2 24 x 4 8 = 16 n 
16
6 x 16 4 = 16 n 
16
10 = 16 n
Therefore, the value of n is 10.
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