Let .

Prove is an abelian group under multiplication.

This makes sense since the units are group under multiplication.

is the identity.

How do I find the inverse?

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- August 27th 2011, 03:49 PMdwsmithRoots of Unity as a group
Let .

Prove is an abelian group under multiplication.

This makes sense since the units are group under multiplication.

is the identity.

How do I find the inverse? - August 27th 2011, 04:21 PMPlatoRe: Roots of Unity as a group
- August 27th 2011, 04:52 PMdwsmithRe: Roots of Unity as a group
- August 27th 2011, 04:58 PMdwsmithRe: Roots of Unity as a group
For associative and commutative, that is trivial true since is a field, correct?

- August 27th 2011, 05:05 PMPlatoRe: Roots of Unity as a group