Let G be the set consisting of the following matrices: (6 9) (6 ) ( ) -1/2 v3/2 V3/2 1/2 -1/2 V3/2) -1/2 -1/2 V3/2) -V3/2 1/: V3/2 -1/2 Show that G forms a group under multiplication, and write the Cay- ley table for this group.

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