Quote:
Originally Posted by mraudiofreak
you forgot x^9 as well. This means two of the elements are the identity of the group. x^3 is the identity because that means both x^3 and x^9 are the identity (e^3=e). Thus, there are three elements in the other group: x^13, x^26, x^39=e
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what do u mean by {x^3,x^5,x^9} has 2 elements. It has 3 elements rights? and why should two of them be identities?
