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1、衡水金卷先享题2022-2023高三一轮,复习摸底测试卷文数二

2、《衡水金卷·先享题》2022-2023学年度高三一轮复习摸底测试卷

3、衡水2022到2023年高三一轮复习摸底测数学试卷

8C【解析】设椭圆长轴长2a1,双曲线实轴长2a2,由题意可知F1F2|=|F2P|=2c又∵|F1P|+F2=2ai, FPl-IF, Pl=2a?,. F,P+2c=2a1,|F1P|-2c=2a2,两式相减,可得a1-a2=2c,∴2+-21+2m=24(2c+a2)a2+c28ca2+4a2+c24+=+x,∵2a+≥2√·=2,当且仅当2=时等号成立,…∴+的最小值为6.故选C

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