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三角函數
Author:
Tina Lin
Topic:
Trigonometric Functions
GeoGebra
New Resources
撒针估算面积实验
直線的斜率：水平變化 & 鉛垂變化
百分數及其應用
多邊形的面積
龙形曲线-分形龙
Discover Resources
F1 Algebra
o'clcok
Question 1
矩形性质推论
C60足球模型
Discover Topics
Statistical Characteristics
Boxplot
Hypergeometric Distribution
Rational Numbers
Arithmetic