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Introduction to Polar Coordinates 極坐標簡介
Author:
Alex CHIK
Topic:
Coordinates
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
New Resources
兩位數除以一位數（一）
【案例】2013年安徽高考15题
四邊形的特性
GeoGebra笔记功能体验课件
四邉形 (四年級) 教師版
Discover Resources
等腰，角度关系
Net of a cone
Circle Rule
Question 2
变化的三角形的垂心.许兴华数学
Discover Topics
Set Theory
Subtraction
Secant Line or Secant
Logarithm
Circumcircle or Circumscribed Circle