Let G = \mathbb{R} \setminus {0}, and define operation:
a * b = \frac{ab}{2}
Show that (G, *) is an Abelian group.
Show that G, * is an Abelian group
Let G = \mathbb{R} \setminus {0}, and define operation:
a * b = \frac{ab}{2}
Show that (G, *) is an Abelian group.