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餘弦定理的圖形證明2
Author:
yuchengda
GeoGebra
New Resources
兩組對邊相等的四邊形
判斷球體
算柱 (兩位數)
拼砌四邊形
三位數除以一位數（一）
Discover Resources
指數函數與二次函數的交點數
講義/試卷 函數圖形 (雙函數)
比例中的定值問題
橢圓幾何性質,光學性質,生活應用
GeoGebra合作伙伴关系
Discover Topics
Conic Sections
Arithmetic Operations
Histogram
Prism
Logarithm