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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
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平行線的斜率
【案例】2018年全国1卷理科12题
直線的斜率
三位數除以一位數(一)
垂直線的斜率
Discover Resources
費氏螺旋線(配合試算表)
两平面夹角1
Ext angle cyclic quad
中央極限定理的副本
抛物面
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Combinatorics
Statistical Characteristics
Quadratic Functions
Curve Sketching
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