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正弦函數值的變化
Author:
t0759
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
畫出對稱圖形
找出對稱軸
【案例】2018年全国1卷理科12题
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平行四邊形面積
題七
線之極點定理 / pole of a line theorem
學習單：三角形外切圓作法
诱导公式三（x轴对称关系）
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Step Functions
Geometric Transformations
Mode
Constructions
Line Segment