Consider the following statements in respect of a non-singular matrix A of order n :
1. A(adj AT) = A(adj A)T
2. If A2 = A, then A is identity matrix of order n
3. If A3 = A, then A is identity matrix of order n
Which of the statements given above are correct?
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3