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-3/2 ≤ cosα + cosβ + cosγ ≤ 3
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
前提:α + β + γ = 0
New Resources
算柱 (兩位數)
柱體建築師
球體建築師
錐體建築師
第八周作业
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waaachen
conjugate
三節棍
斜率大小
解題三
Discover Topics
Statistics
Correlation
Unit Circle
Indefinite Integral
Symmetry