Question

if A is invertible matrix of order 3 and |A|=5 then |adjA| is
​

Answer 1

Answer:

|adj A|=25

Step-by-step explanation:

Given:|A|=5 and order n=3.

 

We know |adj A|=

 

Here n=3.

 

|adjA|=|A|3−1

 

=|A|2

 

Therefore |adjA|=52

 

=25.

 

Hence |adj A|=25.

 Mark me as brainliest