Mathematics
Mathematics, 04.02.2021 04:20, LunaGear

Show that the set 4Z of all integer multiples of 4 is a subgroup of the group (Z,+). What is the index [Z : 4Z] ?

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Show that the set 4Z of all integer multiples of 4 is a subgroup of the group (Z,+). What is the ind...

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