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-1/8 ≤ cosα cosβ cosγ ≤ 1
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩位數除以一位數（二）
球體建築師
錐體建築師
三位數除以一位數（二）
畫出對稱圖形
Discover Resources
蕭宇珏的繪本
藝術著色
正12面體
bang
S0G4L2 到两点距离的运算为定值
Discover Topics
Polygons
Cosine
Arithmetic Operations
Conic Sections
Hyperbola