Question

If A = $\begin{bmatrix}2a & 0& 0\\\[0.3em]0& 2a& 0\\\[0.3em]0&0 & 2a\\\[0.3em] \end{bmatrix}$, then the value of $|adj A|$is:

• A. $64a^6$
• B. $8a^3$
• C. $64a^3$
• D. $8a^6$

Answer 1

Answer: (A)

$64a^6$

Answer 2

The correct option is (A): $64a^6$