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EX3.18
Author:
Pokman Cheng
GeoGebra
New Resources
兩位數加法
第八周作业
球體建築師
算柱 (兩位數)
異分母分數減法
Discover Resources
直线与椭圆
均分除法（分數÷整數）
some circles
廣義三角函數的換算
課堂工作紙(二)
Discover Topics
Trigonometric Functions
Addition
Special Points
Perimeter
Functions