How to find the cardinality of the centre of Z_{12} ?.......
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Originally Posted by binu01234 How to find the cardinality of the centre of Z_{12} ?....... Look carefully at the definition of the centre of a group. In any Abelian group what is the centre? How are you defining $\displaystyle \mathcal{Z}_{12}~?$
ok thanks is there any way to find the cardinality if the group if it is not abelian for eg in S5 can we find the centre?
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