HMMT 二月 2014 · 代数 · 第 2 题
HMMT February 2014 — Algebra — Problem 2
题目详情
- Find the integer closest to 1 p p . 4 4 4 4 5 + 1 5 1
解析
- Find the integer closest to 1 √ √ . 4 4 4 4 5 + 1 − 5 − 1 4 1 / 4 4 1 / 4 Answer: 250 Let x = (5 + 1) and y = (5 − 1) . Note that x and y are both approximately