Hi. I need to: prove the group (Zp*,x) has exactly one element of order 2. Here, p is prime and (Zp*,x) is the set {1, 2,....., p-1} under multiplication modulo p. Any help would be much appreciated!(adsbygoogle = window.adsbygoogle || []).push({});

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# If p is prime, prove the group (Zp*,x) has exactly one element of order 2.

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