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HMMT 二月 2000 · CALC 赛 · 第 5 题

HMMT February 2000 — CALC Round — Problem 5

专题
Discrete Math / 离散数学
难度
L3
来源
HMMT

题目详情

  1. F or 1 < x < 1, let f ( x ) = . Find a losed form expression (a losed form i =1 i expression is one not in v olving summation) for f . p
解析
  1. f ( x ) = . So, f ( x ) = x = . Th us, f ( x ) = ln(1 x ) . i =1 i =0 i 1 x