名校
解题方法
1 . 在平面直角坐标系
中,椭圆
,圆
,
为圆
上任意一点,
为椭圆
上任意一点.过
作椭圆
的两条切线
,
,当
,
与坐标轴不垂直时,记两切线斜率分别为
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f62686f6f9118291c444a8d5a4d0f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
A.椭圆![]() ![]() | B.![]() |
C.![]() ![]() | D.![]() |
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2024-06-10更新
|
1183次组卷
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2卷引用:湖北省武汉市2024届高三下学期5月模拟训练试题数学试卷
名校
解题方法
2 . 已知椭圆E的中心在坐标原点O,焦点在x轴上,过E的右焦点且斜率为1的直线l交E于A,B两点,且原点O到直线l的距离等于E的短轴长,则E的离心率为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-05-24更新
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2卷引用:湖北省荆州市部分重点高中2024届高考适应性考试数学试题
名校
3 . 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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名校
解题方法
4 . 已知圆,
为圆
内一个定点,
是圆
上任意一点,线段
的垂直平分线
交
于点
,当点
在圆
上运动时.
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c83f9e7f57d03304c3d0e51f43aa5e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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4卷引用:湖北省随州市曾都区第一中学2024届高三上学期12月月考数学试题
名校
解题方法
5 . 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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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)专题11 平面解析几何-3(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
名校
解题方法
6 . 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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|
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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
7 .
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
|
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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
解题方法
8 . 已知离心率为
的椭圆
的左、右焦点分别为
、
,且点
在椭圆M上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/da4f2fb7-dfe2-4d27-acfa-b54e4c109988.png?resizew=205)
(1)若过点
的直线l与椭圆M交于P、
两点,且
,求直线l的方程;
(2)如图,矩形ABCD各边分别与椭圆M相切于点E、F、G、H,求该矩形面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c6162828793e697cb1ad643b287c4b.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/4601e963d732761b028ac8100b891daa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/da4f2fb7-dfe2-4d27-acfa-b54e4c109988.png?resizew=205)
(1)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb92929c4873e1fdbb6319d3b467fb7.png)
(2)如图,矩形ABCD各边分别与椭圆M相切于点E、F、G、H,求该矩形面积的取值范围.
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9 . 设
为椭圆
:
的右焦点,过点
且与
轴不重合的直线
交椭圆
于
,
两点.
(1)当
时,求
;
(2)在
轴上是否存在异于
的定点
,使
为定值(其中
,
分别为直线
,
的斜率)?若存在,求出
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a914673c349b73ce2c595b8971972b3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db36eb152e1ee9a6c138b30ad2ced0aa.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a60ebd73abe0a3f8b0c9eff8164df76f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9e81e69a74df3f61e90b3ce0e97e86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6105ce854fe02662a1238be7bc30d55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf25e032b5599ac49383de06e776365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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2022-09-03更新
|
762次组卷
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4卷引用:湖北省武汉市第十九中学2023届高三上学期11月线上月考数学试题
名校
解题方法
10 . 已知椭圆
的右顶点为
,离心率为
.过点
与x轴不重合的直线l交椭圆E于不同的两点B,C,直线
,
分别交直线
于点M,N.
(1)求椭圆E的方程;
(2)设O为原点.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54695f96e6f365b0cc79b3ceaf5d26cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39cc033406da2cdd342308972c6701f1.png)
(1)求椭圆E的方程;
(2)设O为原点.求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5897b35e64d5c814ac47b917d45e88.png)
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2022-05-05更新
|
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8卷引用:湖北省黄冈中学2022届高三下学期三模数学试题(B卷)