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2020版高考数学大一轮复习第四章三角函数、解三角形第7讲正弦定理与余弦定理课件文.ppt

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第四章 三角函数、解三角形,利用正、余弦定理解三角形,与三角形面积有关的问题,判断三角形的形状,求解几何计算问题,

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