Question

If A is a n-square matrix, then.

• A. $$|adj A|= |A| ^ {(n - 1)}$$
• B. $$|adj A|= |A|^n$$
• C. $$|adj A|= |A|$$
• D. $$|adj A|= |A|^{(n + 1)}$$

Answer 1

Answer:

$$|adj A|= |A| ^ {(n - 1)}$$

$|adj A|= |A| ^ {(n - 1)}$