名校
1 . 已知椭圆
的两个焦点分别为
,
,
是椭圆
上的动点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc3dcffd9b9138ce0e507de40b820b8.png)
,
的最小值为1,则
的焦距为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc3dcffd9b9138ce0e507de40b820b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ef569668e797b1e94257fd5f4384dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.10 | B.8 | C.6 | D.4 |
您最近一年使用:0次
2020-10-30更新
|
1306次组卷
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5卷引用:重庆市江津中学校2021-2022学年高二上学期期中数学试题
重庆市江津中学校2021-2022学年高二上学期期中数学试题湖南省怀化市2020-2021学年高二上学期10月联考数学试题(已下线)考点36 椭圆-备战2021年高考数学(文)一轮复习考点一遍过(已下线)考点38 椭圆-备战2021年高考数学(理)一轮复习考点一遍过山西省怀仁市第一中学云东校区2020-2021学年高二下学期第一次月考(入学考试)数学(理)试题
名校
2 . 已知圆
的圆心为
,设
为圆上任一点,点
的坐标为
,线段
的垂直平分线交
于点
,则
的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25707c478bd248018de6113fc6110aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623afc24f2227004b0e1b3922dfb954b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066b9c12f71ed215ed8e98df05584f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-03-14更新
|
535次组卷
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2卷引用:【校级联考】重庆市江津中学、合川中学等七校2018-2019学年高二上学期期末考试数学(文科)试题