(新课标)2020高考数学大一轮复习第九章解析几何第2课时两直线的位置关系课件文.ppt

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第2课时 两直线的位置关系,k1k2,b1b2,k1k2且b1b2,l1l2,k1k21,垂直,A1A2B1B20,k1k2,A1B2A2B1,谢谢观赏!,

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