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1 . 椭圆
的右焦点为
,定点
,若椭圆
上存在点
,使得
为等腰钝角三角形,则椭圆
的离心率的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5831152887553e4ba92ac117fdec5b5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfb02e157819a2bdd0f2790cbc825e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2021-01-02更新
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935次组卷
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4卷引用:辽宁省沈阳市第一二〇中学2024届高三上学期第五次质量监测数学试题
辽宁省沈阳市第一二〇中学2024届高三上学期第五次质量监测数学试题河北省保定市第三中学2020-2021学年高二上学期12月月考数学试题(已下线)3.1 椭圆(难点)(课堂培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)(已下线)第02讲 椭圆的简单几何性质-【帮课堂】
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2 . 在平面直角坐标系
中 ,已知椭圆
,点
是椭圆内一点,
,若椭圆上存在一点
,使得
,则
的范围是______ ;当
取得最大值时,椭圆的离心率为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f7ca8bf9da83647426babb1b51f0f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7123cafcde8f0f81d269926ad6a45e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ce8d4a9d432afe03a988ae2d49c28c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad1e9742edb1cff4310ab1aac8229c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2019-10-18更新
|
1183次组卷
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6卷引用:辽宁省六校协作体2019-2020学年高二上学期10月月考数学试题
辽宁省六校协作体2019-2020学年高二上学期10月月考数学试题辽宁省葫芦岛市四校2022-2023学年高二上学期期中联考数学试题黑龙江省牡丹江市第一高级中学2019-2020学年高二上学期期中考试数学(理)试题湖南省怀化市沅陵县第一中学2020-2021学年高二上学期第一次月考数学试题广东省六校联盟2023-2024学年高二上学期联考数学试题(已下线)3.1.2 椭圆的简单几何性质【第三练】“上好三节课,做好三套题“高中数学素养晋级之路
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3 . 已知椭圆
=1的左、右焦点分别为
,过
的直线
与过
的直线
交于点M,设M的坐标为
,若
,则下列结论序号正确的有______ .
①
+
<1②
+
>1③
+
<1 ④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10e16258f373e84abd2e12107bafdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c1f0e07596c5b41f296ec004261c34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53304ccc43af71dbf73e22993c72bd12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c1f0e07596c5b41f296ec004261c34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53304ccc43af71dbf73e22993c72bd12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f6d4d60b91618df93baa77ced06349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1566fc7a03974159d52d05c6684545ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c48ff3fcd8e6a8bbdca7a48e890b6d.png)
您最近一年使用:0次
2019-04-18更新
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987次组卷
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3卷引用:【校级联考】辽宁省沈阳市郊联体2019届高三第一次模拟考试(文)数学试题