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MewtwoGaming
a fost răspuns

Determinati ultima cifra a sumei s =8 la puterea 283+9 la puterea126

Răspuns :

Didi12342
S = 8^283 + 9^126

283 = 4 × 70 + 3
126 = 4 × 31 + 2

U(8^283) =U(8^4×70+3) = U(8^3 ) = U(512) = 2

U(9^126) = U(9^4×31+2) = U(9^2) = U(81) = 1

U(S) = U(2 + 1) = 3

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