2014 USAMO Problems真题及答案
2014 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 real numbers such that and all zeros and of the polynomial are real. Find the smallest value the pro...
2013 USAJMO Problems真题及答案
2013 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 Are there integers and such that and are both perfect cubes of integers? Problem 2 Each cell of an board i...
2015 USAMO Problems真题及答案
2015 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 Solve in integers the equation Problem 2 Quadrilateral is inscribed in circle with and . Let be a variable ...
2014 USAJMO Problems真题及答案
2014 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 Let , , be real numbers greater than or equal to . Prove that Problem 2 Let be a non-equilateral, acute trian...
2016 USAMO Problems真题及答案
2016 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 sequence of mutually distinct nonempty subsets of a set . Any two sets and are disjoint and their un...
2015 USAJMO Problems真题及答案
2015 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 Given a sequence of real numbers, a move consists of choosing two terms and replacing each with their arithmeti...
翰林国际教育创始人来无锡啦！【翰林 x 凯银线下见面会】
怎样选择合适的国际学术活动？ 在美国本科申请系统中，课外活动包括六大类别和28个细分方向，学生如果想要申请到美国常青藤学校或其他全球排名靠前的好学校，就必须有高含金量学术活动加持。目前国际上具有高含金...
2016 USAJMO Problems真题及答案
2016 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 The isosceles triangle , with , is inscribed in the circle . Let be a variable point on the arc that does not...
2017 USAMO Problems真题及答案
2017 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 Note: For any geometry problem whose statement begins with an asterisk (), the first page of the solution must be a large,...
