Question

find all automorphisms on z6​

Answer 1

Answer:

z-0,1,2,3,4,5

observe-AKEZ6,K6 - e-0mod6

recal:suppose 0 is an isomorphism from a group g to g .then A a E G a 0/- a

recal- Aut (Zn)- U (n)

so,Aut (z6) - U(6)-(1,5)

thus,we deduce the possible candidates be ( 1) a- 1 or (1) a-5

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