CUET Preparation Today
CUET
-- Mathematics - Section A
Determinants
If A is a square matrix of order 3 such that |A| = 2, then the value of |adj(adj A)| is:
2
4
8
16
The correct answer is Option (4) - 16
$|A| = 2$
$|adj(adj\,A)|=|A|^{(n-1)^2}$
$=2^{(3-1)^2}$
$=2^4=16$
