基礎數學
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第 14 章 圓錐曲線
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14.2 橢圓
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14.1 拋物線
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14.3 雙曲線
Last updated
8 months ago
b^2=a^2-c^2 的幾何意義
https://www.geogebra.org/m/z7g8y3gm
https://www.geogebra.org/m/rndn8y5k
https://www.geogebra.org/m/D55ER2yN#material/Nsd4C9yX
https://www.geogebra.org/m/D55ER2yN#material/CrVpc8pP
https://www.geogebra.org/m/qjrmma4v
https://www.geogebra.org/m/dywbgm6r
