Consider the following statements in respect of two non-singular matrices A and B of the same order n :
1. adj(AB) = (adj A)(adj B)
2. adj(AB) = adj(BA)
3. (AB) adj (AB) - |AB|In is a null matrix of order n
How many of the above statements are correct?
1
None
2
Only one statement
3
Only two statements
4
All three statements