@1? (full carifica bien) Suppose A is nun mabrix Caqure mabrix) prove that if bhe pivoba for the matrix is Unigu e or nob Unique and give ab Least counber example.

11. Find two nonzero matrices and such that.

35. A permutation matrix is a matrix that can be obtained from an identity matrix by interchanging the rows one or more times (that is, by permuting the rows). For the permutation matrices are and the five matrices. (Sec. , Sec. , Sec. ) Given that is a group of order with respect to matrix multiplication, write out a multiplication table for . Sec. 22. Find the center for each of the following groups . c. in Exercise 35 of section 3.1. 32. Find the centralizer for each element in each of the following groups. c. in Exercise 35 of section 3.1 Sec. 5. The elements of the multiplicative group of permutation matrices are given in Exercise of section. Find the order of each element of the group. Sec. 6. Let be the group of permutations matrices as given in Exercise of Section .

In general, it is difficult to show that two matrices are similar. However, if two similar matrices are diagonalizable, the task becomes easier. In Exercises 38-41, show that A and B are similar by showing that they are similar to the same diagonal matrix. Then find an invertible matrix P such that .