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二次函数y=ax²（a＞0)
Author:
吕胜
GeoGebra
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Nested spiral octagon
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
拼砌四邊形
AI 訓練教室
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K9@cn
三角形外角和為360度
函數圖形的變化（Ⅱ）
sin(x) 的函數圖形的副本
[洋葱] 二次函数中的将军饮马-上(0420)
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Multiplication
Piecewise Functions
Logarithm
Geometry
Cosine