Consider the following in respect of the matrix \(\rm A = \begin{bmatrix} 1 & 1 & 1\\ 1 & 1 & 1\\ 1 & 1 & 1 \end{bmatrix}\)
1. Inverse of A does not exist
2. A3 = A
3. 3A = A2
Which of the above are correct?
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3