两种方法求高考试题中圆锥曲线的离心率

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1005-9741|volume|2|59-61

ISSN: 1005-9741

Source: 河北理科教学研究, Vol.volume, Iss.2, 2017-01, pp. : 59-61

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Abstract