Exercise 5. (a) Use Proposition 3.5.20 to prove the following: if k> integer m with 0 ≤ m < N then there exists an integer will need the fact that N = 1. 3 0 and k is relatively prime to N, then for any such that (k)= m. (To do this problem, you (b) Show that I found in the previous exercise can be chosen between 0 and N - 1. (c) Show that if k> 0 is relatively prime to N, then the complex numbers (k), j = 0,... N - 1 are exactly the Nth roots of unity in rearranged order.(Hint: show that according to the previous exercise, all N of the Nth roots of unity are included somewhere among these N numbers. So all N numbers are accounted for.)
Exercise 5. (a) Use Proposition 3.5.20 to prove the following: if k> integer m with 0 ≤ m < N then there exists an integer will need the fact that N = 1. 3 0 and k is relatively prime to N, then for any such that (k)= m. (To do this problem, you (b) Show that I found in the previous exercise can be chosen between 0 and N - 1. (c) Show that if k> 0 is relatively prime to N, then the complex numbers (k), j = 0,... N - 1 are exactly the Nth roots of unity in rearranged order.(Hint: show that according to the previous exercise, all N of the Nth roots of unity are included somewhere among these N numbers. So all N numbers are accounted for.)
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter5: Rings, Integral Domains, And Fields
Section5.2: Integral Domains And Fields
Problem 12E
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