Question

plz answer fast ........​

Answer 1

Answer:

16

Step-by-step explanation:

For n×n matrices:

  A ( adj A ) = |A| Iₙ

So taking determinants of both sides:

 |A| |adj A| = |A|ⁿ

=> |adj A| = |A|ⁿ⁻¹

In the current situation, we have n=3 and |A|=4, so:

 |adj A| = |A|ⁿ⁻¹ = 4² = 16