AP EAMCET · Maths · Matrices
If \(A\) is an invertible matrix of order \(n\), then the determinant of \(\operatorname{adj} A\) is equal to :
- A \(|A|^n\)
- B \(|A|^{n+1}\)
- C \(|A|^{n-1}\)
- D \(|A|^{n+2}\)
Answer & Solution
Correct Answer
(C) \(|A|^{n-1}\)
Step-by-step Solution
Detailed explanation
Since \(A\) is invertible matrix of order \(n\), then the determinant of adj \(A=|A|^{n-1}\)
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