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High-School Mathematics
1005-6416
2007 Issue 5
Some Problems Relative to the Pythagoras Theorem
LI Jian-quan
..............page:2-5
Excenter of Triangle
HUANG Quan-fu
..............page:5-10
Proving Inequalities by the Method of Derivative Restriction
LEI Dong-liang
..............page:11-13
A Derivative Solution to a Winter Camp Question in 1988
LI Cheng-zhang
..............page:14
A Solution System in the Triangular Structure(Ⅱ)
TAO Ping-sheng
..............page:15-20
An Exquisite Property of Elliptical Focal Radius
WU Zeng-ming
..............page:21
Optimal Forms of Two Usual Inequalities
DING Zun-biao
..............page:21-22
ICM and Fields Prize
WU Zhen-kui
..............page:22-23
Problems on Mathematical Olympiad
zhao jun peng ; yuan an quan ; sheng hong li ; zuo liang ; wu wei chao ; huang quan fu ; liu wen bin ; wan xi ren
..............page:47-49