Hey, could anyone help me establish the following statements:

If a has order 2k modulo the odd prime p, then a^k= -1(mod p)

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- October 29th 2008, 07:41 AMfelixmcgradyElementary # theory
Hey, could anyone help me establish the following statements:

If a has order 2k modulo the odd prime p, then a^k= -1(mod p) - October 29th 2008, 09:06 AMHallsofIvy