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以 Unit Circle 了解 Sine 的正/負的副本
Author:
zhujianpeng
,
gklwong
以 Unit Circle 了解 Sine 的正/負
GeoGebra
New Resources
畫出對稱圖形
球體建築師
找出對稱軸
兩位數除以一位數(一)
【案例】2018年全国1卷理科12题
Discover Resources
沈老師等腰直角幾何題
分數除法4: 1 ÷ a/b (包含)
測試繪本
余弦定理的证明
相反数 思考(教材第10页)
Discover Topics
Linear Programming or Linear Optimization
Trigonometric Functions
Natural Numbers
Intersection
Quadrilaterals