CUET Preparation Today
CUET
-- Mathematics - Section B1
Determinants
If A is a matrix of order 4, and |A| = -3, then what is the value of |adj A|?
27
-27
-9
9
|adj A| = \( { |A| }^{ n-1 } \), where n is the order of the matrix
|adj A| = \( { |A| }^{ 4-1 } \)
|adj A| = \( { (-3) }^{ 4-1 } \)
|adj A| = -27