申请美本强有力的加分项AMC美国数学竞赛
AMC美国数学竞赛来了...趁着暑期最后一段时间提升竞争力,向美国名校踏进一步!什么是AMC竞赛?1950 年美国数学协会...
莫过于美国的AMC了.AMCAMC的定义:AMC是American Mathematics Competition美国数学竞赛的缩写,由美国数学协会(...
2009 USAMO Problems真题及答案 完整版真题免费下载 +答案解析请参考文末 真题下载请前往【纯真题】小程序 Day 1 Problem 1 Given circles and intersecting at points and , let be a line through the cent...
2010 USAMO Problems真题及答案 完整版真题免费下载 +答案解析请参考文末 Day 1 Problem 1 Let be a convex pentagon inscribed in a semicircle of diameter . Denote by , , , the feet of the perpendicular...
2011 USAMO Problems真题及答案 完整版真题免费下载 +答案解析请参考文末 Day 1 Problem 1 Let , , be positive real numbers such that . Prove that Problem 2 An integer is assigned to each vertex ...
2010 USAJMO Problems真题及答案 完整版真题免费下载 +答案解析请参考文末 Day 1 Problem 1 A permutation of the set of positive integers is a sequence such that each element of appears precisely one ...
2011 USAJMO Problems真题及答案 完整版真题免费下载 +答案解析请参考文末 Day 1 Problem 1 Find, with proof, all positive integers for which is a perfect square. Problem 2 Let , , be positive real nu...
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