1 . 已知直线
与抛物线
交于
两点,与准线交于
点,
为抛物线的焦点,若
,则
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427d2842085b58660c4a82bb1d117497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5fe8c77a550d704f550f9eca3607033.png)
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解题方法
2 . 双曲线的一个焦点为
,其渐近线方程为
,则双曲线的标准方程为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dbd9ed5ae3f4e17fd82617d80d1a09f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e0d4e3e322585fefe4c25020eda176.png)
您最近一年使用:0次
2020-02-07更新
|
204次组卷
|
2卷引用:重庆外国语学校高2021级2019-2020学年高二上学期2月月考数学试题
名校
解题方法
3 . 椭圆的焦点
,
,长轴长为
,在椭圆上存在点
,使
,对于直线
,在圆
上始终存在两点
使得直线上有点
,满足
,则椭圆的离心率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63587f0178ca6f60d893e2e29d231a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a1478115daf49999c51c122f8d31a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d73051a69eb8ee28050d482d1325e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3afe3758e5564ce5ed61f781733ca726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c27b34f6052f3c1beea45bc6757eb600.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-02-07更新
|
703次组卷
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3卷引用:重庆外国语学校高2021级2019-2020学年高二上学期2月月考数学试题
4 . 椭圆
的中心在坐标原点,焦点
在
轴上,过坐标原点的直线
交
于
两点,
,
面积的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd0caec008c15302ca973b8e655b748.png)
(1)求椭圆
的方程;
(2)
是椭圆上与
不重合的一点,证明:直线
的斜率之积为定值;
(3)当点
在第一象限时,
轴,垂足为
,连接
并延长交
于点
,求
的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.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/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c60c319582cedeb7bbdf832e26fda17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31c3d1c2d2c394a71ac2c311653b347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd0caec008c15302ca973b8e655b748.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/592b4967f670b263ea9331370bc46940.png)
(3)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae95e96ce568efee50145f8d017353df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3d566704b44ea4ef1f99c37bd46902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d454eee3fbca680666a807ecb5d454.png)
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名校
5 . 如图,已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
的焦点为
,且椭圆
过点
,若直线
与直线
平行且与椭圆
相交于A,B两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/29a8ab90-5a34-40a9-8de4-cc79b14614a6.png?resizew=190)
(1) 求椭圆的标准方程;
(2) 求三角形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb146c8295542775d71a3896ba8fca99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4754fbe523ca63eba3810a3f88f37df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/29a8ab90-5a34-40a9-8de4-cc79b14614a6.png?resizew=190)
(1) 求椭圆的标准方程;
(2) 求三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
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2020-02-07更新
|
224次组卷
|
2卷引用:重庆市云阳江口中学校2019-2020学年高二上学期第二次月考数学试题
名校
6 . 已知焦点为
的椭圆
上有一点P,且
的面积是__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4cfa9ac1068285d34c6c623e731b1f.png)
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名校
7 . (1)已知点M(1,2)和直线
.求以M为圆心,且与直线
相切的圆M的方程;
(2)椭圆
内有一点
为经过点
的直线与该圆截得的弦,则当弦
被点
平分时,直线
的方程为.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a68a286ab2dafb85b4c933d0082db84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddab7b8aa22e1ba4c59da7dc04ac9e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc25cc2957ee0f0941e698ba7db8a1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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名校
解题方法
8 . 设椭圆
的左顶点为
、中心为
,若椭圆
过点
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/4f60088a-4964-4bbc-9d54-9150a56a1b56.png?resizew=162)
(1)求椭圆
的方程;
(2)若
的顶点
也在椭圆
上,试求
面积的最大值;
(3)过点
作两条斜率分别为
,
的直线交椭圆
于
,
两点,且
,求证:直线
恒过一个定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c6162828793e697cb1ad643b287c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c52b2d124d1c3bd4f865e7b653ad5c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b60904605063a129c9dcfaffb320e5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/4f60088a-4964-4bbc-9d54-9150a56a1b56.png?resizew=162)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](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/ac047e91852b91af639feec23a9598b2.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/46b728c0e69820cdcd839e67ffdb1014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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2020-09-23更新
|
1459次组卷
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7卷引用:重庆市南开中学2020-2021学年高二下学期4月诊断数学试题
名校
9 . 已知方程
和
(其中
且
,
),它们所表示的曲线在同一坐标系中可能出现的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/314125ba34d32175fc488c6dc83d87c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57fdd08cd54c106739f788fafce9d9d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343dc2efff2e4a23640d96272d51c550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68a83b4093280ea8750677f6828bf47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-01-31更新
|
1303次组卷
|
5卷引用:重庆市西南大学附属中学2020-2021学年高二上学期第一次月考数学试题
重庆市西南大学附属中学2020-2021学年高二上学期第一次月考数学试题江苏省苏州市2019-2020学年高二上学期期末数学试题湖北省武汉中学2020-2021学年高二上学期期末数学试题辽宁省凌源市2020-2021学年下学期高二尖子生抽测数学试题(已下线)专题11 直线与圆-备战2020年新高考数学新题型之【多选题】-《2020年新高考政策解读与配套资源》
名校
10 . 已知椭圆
(
),点
为椭圆短轴的上端点,
为椭圆上异于
点的任一点,若
点到
点距离的最大值仅在
点为短轴的另一端点时取到,则称此椭圆为“圆椭圆”,已知
.
(1)若
,判断椭圆
是否为“圆椭圆”;
(2)若椭圆
是“圆椭圆”,求
的取值范围;
(3)若椭圆
是“圆椭圆”,且
取最大值,
为
关于原点
的对称点,
也异于
点,直线
、
分别与
轴交于
、
两点,试问以线段
为直径的圆是否过定点?证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5563df225901b03c51b139684de04bd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1225fd03e8e8730dac8487dae5387635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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2020-01-13更新
|
692次组卷
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7卷引用:重庆市江津中学2022-2023学年高二上学期10月阶段性考试数学试题
重庆市江津中学2022-2023学年高二上学期10月阶段性考试数学试题(已下线)江苏省南通市如皋市2021-2022学年高二上学期第一次调研测试模拟演练数学试题上海市七宝中学2023-2024学年高二下学期3月月考数学试题上海市徐汇区2019-2020学年高三上学期第一次模拟数学试题(已下线)考向04 一次函数与二次函数-备战2022年高考数学一轮复习考点微专题(上海专用)(已下线)第13讲 椭圆 - 1(已下线)压轴题圆锥曲线新定义题(九省联考第19题模式)练