Kongruencja Kot: Pomocy 7²²²²= ? ( Mod10)

kochanus_niepospolitus: 7² = 49 więc 7² (mod 10) = 9 (mod 10) = −1 (mod 10) 7²²²² (mod 10) = (7²)¹¹¹¹ (mod 10) = (−1)¹¹¹¹ (mod 10) = −1 (mod 10) = 9 koooniec