Question

 Let A be a non singular matrix of order 3X3. Then |adj A| is equal to *

1 point

|A|

|A| x |A|

|A| x |A| x |A|

3|A|
​

Answer 1

Answer

Since we know that

|adj.A| =|A|^n-1

Therefore putting n=3,we get

|adj.A| = |A|^3-1

|adj.A| = |A|^2

|adj.A| = |A|×|A|

Therefore |A|×|A| is correct option.