arithmétique lycée recueilchapitre 3exercice 3.14principe des tiroirs
A Bézout relation
Recueil COMIMa — Techniques de résolution de problèmes · 2026 · Madagascar · ★★★★★
Statement
Soient $a$ et $b \in \mathbb{N}$ deux entiers premiers entre eux. Alors il existe des entiers naturels $x$ et $y$ tels que $ax - by = 1$.
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Origin : Recueil COMIMa — Techniques de résolution de problèmes · 2026 · Madagascar
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