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以 Unit Circle 了解 Sine 的正/負
Author:
gklwong
Topic:
Circle
,
Sine
以 Unit Circle 了解 Sine 的正/負
GeoGebra
New Resources
畫出對稱圖形
錐體建築師
兩位數除以一位數（一）
球体的体积推导（优化版）
柱體建築師
Discover Resources
测试 = =
可動多邊形
Compound Inequalities
正弦函數的遞增與遞減
六年級_截面_柱體_多邊形
Discover Topics
Kite
Pie Chart or Circle Chart
Rotation
Rational Numbers
Quadratic Functions