1 . 已知椭圆
的离心率为
,且过点
.圆
的切线l与椭圆E相交于A,B两点.
(2)直线OA,OB的斜率存在为
,
,直线l的斜率存在为k,若
,求直线l的方程;
(3)直线OA,OB与圆
的另一个交点分别为C,D,求
与
的面积之和的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80991c1f0c963104740e50cfff6f29a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b33328faae2d2d4921900e97424de5.png)
(2)直线OA,OB的斜率存在为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a08a512b63d60ae9ef4315ed8615542.png)
(3)直线OA,OB与圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b33328faae2d2d4921900e97424de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4807ca16360c0cca436e59d4be98f626.png)
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2024-06-01更新
|
525次组卷
|
3卷引用:重庆市巴蜀中学校2023-2024学年高二下学期期中考试数学试题
名校
2 . 已知双曲线
的左、右焦点分别为
,
,点
与抛物线
的焦点重合,
与
在第一象限相交于点P.若
,则
的渐近线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42a960d9c62f797d46caa7a8a4a134a.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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0107aa23cf707446f947fa236421c1f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96a816516fe1813065b4e001e4d2fb57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知椭圆
的左、右焦点分别为
,过
的直线与
交于点
.直线
为
在点
处的切线,点
关于
的对称点为
.由椭圆的光学性质知,
三点共线.若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/938973abe1b7a0648b4800e0c8ecc7b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3114c1fd67fa0ddcec9986e35fbc460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9bcc353a66d474bf9197644b1cbe7a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 已知椭圆E:
(
),经过点
,离心率为
,圆O以椭圆的短轴为直径.
(1)求椭圆E的标准方程和圆O的方程;
(2)设P为椭圆的左顶点,过点P作两条相互垂直的直线
,
,设直线
与椭圆E的另一个交点为Q,直线
交圆O于A,B两点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f0bebb4cada94325018a8ed9109598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆E的标准方程和圆O的方程;
(2)设P为椭圆的左顶点,过点P作两条相互垂直的直线
![](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/8b17f20c25bb16153b5f2d25062ed7a7.png)
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5 . 设抛物线
,圆
.已知
上的点到
的准线的距离的最小值为2.
(1)求
;
(2)倾斜角为
的直线
与
交于
两点,与
交于
两点.
(i)若
为圆
的直径,求
的面积;
(ii)当
取最大值时,求直线
在
轴上的截距.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8fe070d417604233ff235054f600c34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b1c4ff854141d6ae15d10e3e82deb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(i)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
(ii)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2135ff2675324de8a374aadca74e869f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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解题方法
6 . 已知点
,
在抛物线
上.
(1)若
,记线段
的中点为M,求点M到y轴的最短距离;
(2)若点
,
在直线
上,且满足四边形
为正方形,求此正方形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8953ded144195804384dcb494d5e2a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368fc197b61e01fe6a4a168bb7b375cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fceb9eb57ca36db386ffafeda213599c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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7 . 已知
为双曲线
上一动点,则
到点
和到直线
的距离之比为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/335caead9a9e7d18587492828f7c2456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
A.1 | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
2024-04-15更新
|
1183次组卷
|
3卷引用:重庆市第一中学校2023-2024学年高二下学期期中考试数学试题
名校
解题方法
8 . 已知椭圆
的上顶点为A,B、C在椭圆上,△ABC为等腰直角三角形,A为直角,若这样的△ABC有且只有一个,则该椭圆的离心率的取值范围为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b24214f111f7c6d2b64e53ad970438b.png)
您最近一年使用:0次
2024-03-21更新
|
714次组卷
|
4卷引用:重庆市第一中学校2023-2024学年高二下学期期中考试数学试题
名校
9 . 已知双曲线
,则下列选项中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25381da4ce871a6b087a029bf694337.png)
A.![]() |
B.若![]() ![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2024-01-27更新
|
200次组卷
|
8卷引用:重庆市渝南田家炳中学校2023-2024学年高二上学期半期考试数学试题
重庆市渝南田家炳中学校2023-2024学年高二上学期半期考试数学试题山东省枣庄市第八中学2022-2023学年高二上学期期末数学试题贵州省铜仁市松桃苗族自治县群希高级中学2023-2024学年高二上学期第三次月考数学试题(已下线)模块一 专题4 圆锥曲线 期末终极研习室(2023-2024学年第一学期)高二人教A版(已下线)3.2.2 双曲线的几何性质(8大题型)-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)(已下线)3.2.2 双曲线的简单几何性质(8大题型)精讲-【题型分类归纳】2023-2024学年高二数学同步讲与练(人教A版2019选择性必修第一册)(已下线)3.2.1 双曲线及其标准方程(AB分层训练)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)(已下线)第07讲:圆锥曲线小题 (必刷9大考题+9大题型) -2023-2024学年高二数学上学期《考点·题型·难点》期末高效复习(人教A版2019)
解题方法
10 . 已知椭圆
的长轴长是短轴长的2倍,左焦点为
.
(1)求椭圆
的方程;
(2)若
是椭圆
的右顶点,过点
且斜率为
的直线交椭圆
于
两点,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80aef0c3cea9d23a25a70efca2f706b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f506bcb56127e1345ec989ae07375ca.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
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