Report - i.vndoc.comi.vndoc.com/data/file/2015/Thang01/27/30-de-hoc-sinh-gioi-toan-lop-7.pdf · 1 §Ò 1 C©u 1. Víi mäi sè tù nhiªn n ≥ 2 h·y so s¸nh: a. A= 2 2 2 2 1.... 4 1 3 1

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