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Anonymous User
B check attachment
understand
but sir correct answer is c
c also right bcz (z+) is cyclic group so its subgroup also cyclic
sir, I could not understand your solution please clarify again.
(z,+) is cyclic group its all subgroup are also cyclic so options c also right
why not equal to 0?
if H is subgroup of G then H.H^-1=H for addition H-H=H