0 0 - 1 3. Show that A and B are not similar matrices. 11 2 2 1 1 A = 0 1 -1 , B = 0 1 12 0 1 4. Determine whether A is diagonalizable and, if so, find an invertible matrix P and a diagonal matrix D such that P-1AP = D. 11 0 11 A = 10 1 1 0 1