Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If `A= [[3,2],[0,1]]`, then `(A^-1)^3` is equal to - Sarthaks eConnect

If `A= [[3,2],[0,1]]`, then `(A^-1)^3` is equal to

`1/27[[1,-26],[0,27]]`

`1/27[[1,26],[0,27]]`

`1/27[[1,-26],[0,-27]]`

`1/27[[-1,-26],[0,-27]]`