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第 六 节

正弦定理和余弦定理. 第 六 节. 正弦定理的应用. 余弦定理的应用. 三角形形状的判定. 三角形的面积公式. 综合应用.

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第 六 节

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  1. 正弦定理和余弦定理 第 六 节

  2. 正弦定理的应用

  3. 余弦定理的应用

  4. 三角形形状的判定

  5. 三角形的面积公式

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