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极限化为定积分
Author:
wenguichen
GeoGebra
New Resources
平行線的判定
斐波那契螺旋弧线（表格法-可动态调节）
龙形曲线-分形龙
盈利與虧蝕
三角函数 的副本
Discover Resources
Copy of 分數與小數
橢圓1--同心圓法
Sec1302 Example0203
翰林數學_2下_CH3-1_三角形的外角定理
烟囱
Discover Topics
Prism
Sequences and Series
Isosceles Triangles
Subtraction
Linear Programming or Linear Optimization