Q1:
18th May Shift 2
Medium
common
If $A = \begin{bmatrix} 3 & 0 & -1 \\ 2 & 3 & 0 \\ 0 & 4 & 1 \end{bmatrix}$, then which of the following is/are correct ? A. $|A| = 1$ B. $A$ is singular matrix. C. $|adj A| = 1$ D. $|adj.(adj A)| = 1$ Choose the correct answer from the options given below: