CUET · MATHS · PYQ PAPER 2025
Let \(A\) be a non-singular matrix of order 3 and \(|A|=15\), then \(|\operatorname{adj} A|\) is equal to:
- A \(15\)
- B \(45\)
- C \(225\)
- D \(150\)
Answer & Solution
Correct Answer
(C) \(225\)
Step-by-step Solution
Detailed explanation
\(|\operatorname{adj} A| = |A|^{n-1}\) \(|\operatorname{adj} A| = 15^{3-1} = 15^2 = 225\)
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