名校
1 . 已知直线
与椭圆
交于A,B两点,与椭圆
交于C,D两点,若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9944bcd0c383c1d3d04c6ab90cacced9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac6065a9ad3035676e8c65a1c5152b85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7a91691ade57650194d8028cc205f50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
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2 . 在平面直角坐标系
中,P为椭圆C:
上的动点,Q为直线l:
上的动点,且
.则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6dba18751d6641f9fa02f5756be97a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcaada7649455fbebcdbdbb9a94e6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3de67f64270935ceb31a169d5c8a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638516a8a853dcc41be75f1fcbb73ef1.png)
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解题方法
3 . 已知椭圆
的左、右焦点分别为
,
,
为
上的动点.若
,且点
到直线
的最小距离为
,则
的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.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/505d992e1337315cb4cd7118e964f701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a362b22d77130726c8dda391382eb186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2023-06-21更新
|
1058次组卷
|
5卷引用:湖北省武汉市第四十九中学2024届高三上学期九月调考模拟数学试题(二)
湖北省武汉市第四十九中学2024届高三上学期九月调考模拟数学试题(二)河北省衡水市第二中学2023届高三三模数学试题(已下线)第20讲 椭圆的简单几何性质10种常见考法归类(1)(已下线)第3课时 课中 直线与椭圆的位置关系(已下线)专题11 平面解析几何-3
名校
解题方法
4 . 已知
为坐标原点,动直线
与椭圆
相切,与圆
相交于
两点,若
的面积的最大值为
,则椭圆离心率的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c6162828793e697cb1ad643b287c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b96eda0601673fafb836643969914f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6322308be685c4a21efa285279afa9e1.png)
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2023-05-24更新
|
656次组卷
|
2卷引用:湖北省黄冈中学2023届高三5月二模数学试题
名校
解题方法
5 .
为椭圆
上任意一点,且点
到直线
和
的距离之和与点
的位置无关,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0296bd9900adcc311f59ad44e940b86f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3083b4990d96d218ee17f1c06486519b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b680ce96f55234b2dfc73980fab811f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-05-04更新
|
556次组卷
|
2卷引用:湖北省荆门市龙泉中学、荆州中学·、宜昌一中三校2023届高三下学期5月联考数学试题
名校
6 . 已知椭圆
上存在相异两点关于直线
对称,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aeabebd5bd9968bf5604ae1243476b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2020-12-11更新
|
662次组卷
|
7卷引用:湖北省武汉市第三中学2023-2024学年高二上学期12月月考数学试题
解题方法
7 . 已知椭圆
的离心率为
,右焦点为
,三角形
的三个顶点都在椭圆上,设它的三条边
、
、
的中点分别为
、
、
,且三条边所在直线的斜率分别为
.若直线
、
、
的斜率之和为-1(
为坐标原点),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dddcb841e17cc8df9c1aa78bc1b12c1.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85bc4b826bb67df8095917ffdb764008.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dddcb841e17cc8df9c1aa78bc1b12c1.png)
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8 . 已知F是椭圆
=1的左焦点,设动点P在椭圆上,若直线FP的斜率大于
,则直线OP(O为原点)的斜率的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4edf9901a4389c3de234c3a137b82f1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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2020-03-09更新
|
195次组卷
|
3卷引用:2020届湖北省武汉市高三下学期2月调考仿真模拟数学文科试题
9 . 直线
与焦点在
轴上的椭圆
总有两个公共点,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/682b383aceb4c979b3d3330beb6e39b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/223ed6c8eda383bca1463018c662e160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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