Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Determinants

Question:
If A is a singular matrix of order 3, then what will be the value of |adj A|
Options:
-1
1
0
Cannot be determined
Correct Answer:
0
Explanation:
We know that |adj A| = \( { |A| }^{ n-1 } \) , where n is the order of matrix A. So, |adj A| = \( { |A| }^{ 3-1 } \) = \( { |A| }^{ 2 } \) = \( { 0 }^{ 2 } \) = 0