5 Find all cosets of the subgroup H of the group G given bel
5. Find all cosets of the subgroup H of the group G given below. What fnitely generated abelian group is the factor group G/H isomorphic to?
Solution
<(3,2)> subgroup is of order 2
no. of cosets must be 3 as G has 6 elements
a) e*<(3,2)> = <(3,2)> = (3,2) * <(3,2)>
b) (1,2) *<(3,2)> = {(1,2,3),(1,2)} = (1,2,3) *<(3,2)>
c) (1,3) *<(3,2)> = {(1,3,2),(1,3)} = (1,3,2) *<(3,2)>
Well H is not normal subgroup
