4.5. An element x of a group satisfies x2 = e precisely when x = x-1....

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4.5. An element x of a group satisfies x2 = e precisely when x = x-1. Use this observation to show that a group of even order

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ein identily of order 2 are telements verses Let G lee a group of order, even number Let at G, then a² = e <=> a = at ein ide

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4.5. An element x of a group satisfies x2 = e precisely when x = x-1....

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