Question

Find |adj A| if A=[5 2]
[7 3]​

Answer 1

|A| = 5*3 - 2*7

|A| = 1

we know that for a 2*2 matrix, ladj A| = |A|

hence Iadj A| = 1

Answer 2

Answer:

1

Step-by-step explanation:

|A|= 15-14=1

|A|= 15-14=1|adjA|=[ 3 -2 -7 5]