(新课标)2020高考数学大一轮复习第九章解析几何第7课时双曲线(一)课件文.ppt

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第7课时 双 曲 线(一),等于常数2a(2a|F1F2|),F1(c,0),F2(c,0),F1(0,c),F2(0,c),|F1F2|2c c2a2b2,|x|a,yR,|y|a,xR,关于x轴,y轴和原点对称,(a,0),(a,0),(0,a),(0,a),实轴长2a,虚轴长2b,谢谢观赏!,

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