Bonsoir, On cherche les entiers a tels que a² - 1 soit divisible par 3. 1. Émettre une conjecture. 2. Démontrer cette conjecture en distinguant selon la parité de a.

Question

Grade: Education Subject: mathematiques

Bonsoir,

On cherche les entiers a tels que
a² - 1 soit divisible par 3.

1. Émettre une conjecture.
2. Démontrer cette conjecture en distinguant selon
la parité de a.

Asked by: USER3415

210 Viewed 210 Answers

Answer (210)

USER1363

Best Answer

(126)

Réponse:

jgjcfjgjgk

Explications étape par étape:

gjvkgjcifi

Answered on 27 Agustus 2025

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Bonsoir, On cherche les entiers a tels que a² - 1 soit divisible par 3. 1. Émettre une conjecture. 2. Démontrer cette conjecture en distinguant selon la parité de a.

Question

Answer (210)

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