HMMT 二月 2001 · 冲刺赛 · 第 19 题
HMMT February 2001 — Guts Round — Problem 19
题目详情
- [9] Calculate n . n =1
解析
- [9] Calculate n . n =1 ( ) 2 2001 2001 ( ) ∑ ∑ 2 2001 · 2002 3 Solution: n = n = = 4012013006001 . 2 n =1 n =1
HMMT February 2001 — Guts Round — Problem 19