Question

Let for A = $\begin{bmatrix} 1 & 2 & 3 \\\ \alpha & 3 & 1 \\\ 1 & 1 & 2 \end{bmatrix}$, |A| = 2. If |2adj (2adj (2A))| = 32n , then 3n + α is equal to

• A. 9
• B. 10
• C. 11
• D. 12

Answer 1

Answer: (C)

11

Answer 2

The correct answer is (C) : 11