## I：數與函數

411 1354 想請問一題 by jacky745 - 2022-4-1 14:25

## II：有限數學

380 1338 機率一題 by thepiano - 2022-4-4 09:39

## III：平面坐標與向量

328 1104 直角三角形面積固定時的外接圓半徑與內切圓半徑的極值 by Lopez - 2021-12-1 15:39

## IV：線性代數

182 653 二次曲線(參數方程式)的應用01 by PDEMAN - 2022-5-18 00:08

## 選修的數學課程

110 400 請問有人能教我這題嗎 by aaaaaaa3372 - 2021-12-27 19:03

# 高中的數學

標題 心得一問 證明不等式， n 個相異正整數平方倒數和，必小於2。 作者 回覆/查看 最後發表 popopoi12345 2007-12-11 1 / 10893 2007-12-11 20:31 by weiye weiye 2007-11-28 0 / 9718 2007-11-28 11:23 by weiye weiye 2007-10-8 0 / 14472 2007-10-8 23:15 by weiye weiye 2007-10-5 0 / 8938 2007-10-5 13:14 by weiye weiye 2007-6-23 0 / 21393 2007-6-23 18:05 by weiye weiye 2006-12-19 0 / 10330 2006-12-19 20:58 by weiye weiye 2006-11-8 0 / 14788 2006-11-8 01:34 by weiye weiye 2006-11-5 0 / 13758 2006-11-5 20:47 by weiye weiye 2006-5-15 0 / 21499 2006-5-15 09:47 by weiye weiye 2006-3-9 0 / 11274 2006-3-9 22:11 by weiye weiye 2006-3-9 0 / 11405 2006-3-9 22:09 by weiye weiye 2006-3-5 0 / 18794 2006-3-5 23:26 by weiye

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