Explain why N (1.9) is a normal subgroup in U(16). Find costs of N in U(16). Determine which keown group is isomorphic to the factor group (16)/N. Justify
Show that U(17) is a cyelle group. Find all generators of the cyclic group U(17). U(17): [1.3.5.6
Explain why N = {1,9) is a normal subgroup in U(16). Find cosets of N in U(16). Determine which known group is isomorphic to the factor group U(16)/N. Justify. U (16) = {