解题方法
1 . 已知椭圆
的右顶点为
,上顶点为
,左、右焦点分别为
为原点,且
,过点
作斜率为
的直线
与椭圆
交于另一点
,交
轴于点
.
(1)求椭圆
的方程;
(2)设
为
的中点,在
轴上是否存在定点
,对于任意的
都有
?若存在,求出定点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dd2722e9cb4052fedd9b78dcf014b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68d521e5a49f4e9d9d9e59cbf407280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2799abb64fd7bfce9dfa7228aa460564.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbb3f7e8ea021b4adb7f430daa7fadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2799abb64fd7bfce9dfa7228aa460564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0297c11050f2e39f82bb2cdf810d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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2023-08-07更新
|
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5卷引用:陕西省西安市阎良区2020-2021学年高二上学期期末理科数学试题
陕西省西安市阎良区2020-2021学年高二上学期期末理科数学试题陕西省渭南市华阴市2020-2021学年高二上学期期末理科数学试题陕西省延安市宝塔区第四中学2020-2021学年高二上学期期末理科数学试题(已下线)第三章 圆锥曲线的方程 章末测试(提升)-2023-2024学年高二数学《一隅三反》系列(人教A版2019选择性必修第一册)江西省上饶市广丰区南山中学2023-2024学年高二上学期期末模拟数学试题
名校
2 . 已知焦点在x轴上的椭圆
的焦距为
,则m的值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f984e5436777978072b02885fe7275a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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2021-10-31更新
|
1054次组卷
|
6卷引用:新疆昌吉州2021-2022学年高二上学期期中质量检测数学试题
新疆昌吉州2021-2022学年高二上学期期中质量检测数学试题广东省广雅中学2022届高三上学期10月月考数学试题(已下线)上海市高二数学下学期期末模拟试卷03--高二期末考点大串讲(沪教版2020选修)云南省大理市2022届高三上学期复习统一检测数学(理)试题(已下线)考点38 椭圆-备战2022年高考数学典型试题解读与变式(已下线)专题1.1 模拟卷(1)-2022年高考数学大数据精选模拟卷(新高考地区专用)
名校
解题方法
3 . 已知椭圆
过点
,且离心率为
.设
,
为椭圆
的左、右顶点,
为椭圆上异于
,
的一点,直线
,
分别与直线
相交于
,
两点,且直线
与椭圆
交于另一点
.
(1)求椭圆
的标准方程;
(2)求证:直线
与
的斜率之积为定值;
(3)判断三点
,
,
是否共线:并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/310f780f4f03699023b1322a1e002539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.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/c5db41a1f31d6baee7c69990811edb9f.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495bb3e5a3a9d35f5c9f0cf1f5d51876.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/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
(3)判断三点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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2022-10-11更新
|
1675次组卷
|
9卷引用:江苏省金陵中学集团南京市人民中学2021-2022学年高二上学期10月月考数学试题
21-22高二·江苏·单元测试
名校
解题方法
4 . 过椭圆
的一个焦点
的直线与椭圆交于A,B两点,则A与B和椭圆的另一个焦点
构成的的周长为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622246b666a288acd70983f7be475a6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09a8ac969e5cec3be6abf4ff44c692e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6758b8b074d33ea9e82818593656e1.png)
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2022-01-04更新
|
866次组卷
|
3卷引用:专题22 《圆锥曲线与方程》中的周长与面积问题(1)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)
(已下线)专题22 《圆锥曲线与方程》中的周长与面积问题(1)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) 湖南省衡阳师范学院祁东附属中学2022-2023学年高二上学期期中数学试题四川省内江市第六中学2022-2023学年高二下学期第一次月考数学(文科)试题
21-22高二·江苏·单元测试
5 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0fe9059acc47d2447576e1260c4622.png)
的左、右焦点分别是
,
,点
到直线
的距离为
,若点
在椭圆
上,
的周长为6.
(1)求椭圆
的方程;
(2)若过
的直线
与椭圆
交于不同的两点
,
,求
的内切圆的半径的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0fe9059acc47d2447576e1260c4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b961597f2495a875b71f8a2f2eff69.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/b05063aa8290b34b56ac3b6193cba95f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bb8ca50f11fb7f9c2b96fd42b11a28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d617aaa770c4e05893a1e4458f43d3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d617aaa770c4e05893a1e4458f43d3bd.png)
(2)若过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead68be1b467506dcdcd0c90317f44b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d617aaa770c4e05893a1e4458f43d3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b5ebfc6a82f19cea0fd940017acf7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5fcfc55b56f04ac530871067e5ce71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b5c81ee16e93e9822c4dc54c362cb3.png)
您最近一年使用:0次
6 . 椭圆
:
的左、右焦点分别为
,
,过点
的直线与椭圆
相交于
,
两点(如图所示),
,
的面积是
的面积的2倍.若
,求椭圆
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/c5db41a1f31d6baee7c69990811edb9f.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/998bdc7dfcdcf466aec25bcbe2786936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9568bd0e4da5b470855a7bb47705731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9116e096dea74380db2b76e5de6b47c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7443f05161c0d25156fac39723d792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2021/11/9/2847527626235904/2847824989241344/STEM/070594a7-ad4f-4009-9fec-674cc55a6120.png)
您最近一年使用:0次
7 . 椭圆
经过点
,其右焦点为抛物线
的焦点
;直线
与椭圆
交于
,
两点,且以
为直径的圆过原点.
![](https://img.xkw.com/dksih/QBM/2021/11/6/2845039716614144/2847497667117056/STEM/ee9515db-39ec-4d22-989a-c010bb3ae361.png?resizew=299)
(1)求椭圆
的方程;
(2)若过原点的直线
与椭圆
交于
两点,且
,求四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc899dac7a2bf6112ca7d7d474eaff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b36df9887ae94b7f1fe112ad43e9ddc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2021/11/6/2845039716614144/2847497667117056/STEM/ee9515db-39ec-4d22-989a-c010bb3ae361.png?resizew=299)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)若过原点的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8069c40eae9104a798c2334b1b91bf06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
您最近一年使用:0次
8 . 已知椭圆的两个焦点是
,且点
在椭圆上,那么这个椭圆的标准方程是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9794d2a0a585b9b7558ee018bfd193ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29610a3415c1e795d35979a5a9ff69f3.png)
您最近一年使用:0次
名校
9 . 已知椭圆
的左、右焦点分别为
,且
,若M为椭圆上一点,线段
与圆
相切于该线段的中点N.
(1)求椭圆C的方程;
(2)若过
作直线
与椭圆C交于两点
,且椭圆C上存在点
,满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b1a324748fa3786fa709db3b008e6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b67528f875a6d4bac8bbf784f7b66a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f25834d8218c53cb975c2a2fe7442a.png)
(1)求椭圆C的方程;
(2)若过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/cff51d38fdcb552216b2ef94fa75be39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2021-10-28更新
|
1933次组卷
|
2卷引用:江苏省盐城中学2021-2022学年高二上学期10月阶段性考试数学试题
名校
解题方法
10 . 已知椭圆T:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
经过以下四个不同点中的某三个点:
,
,
,
.
(1)求椭圆T的方程;
(2)将椭圆T上所有点的纵坐标缩短为原来的
倍,横坐标不变,得到椭圆E.已知M,N两点的坐标分别为
,
,点F是直线
上的一个动点,且直线
,
分别交椭圆E于G,H(G,H分别异于M,N点)两点,试判断直线
是否恒过定点?若过定点,求出定点坐标;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c59f0e35b7ae5206e45878934482b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84f97eefd4fc3b5d8d4af5ce45da93a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b427700dca3dcdb860c9ad1548539dae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e4f13528a90221eac05f2b2307d7e3.png)
(1)求椭圆T的方程;
(2)将椭圆T上所有点的纵坐标缩短为原来的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96201ac729fdce2d278d6034b892121e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1460aa3d83df61f6c411b34412135451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
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2021-09-18更新
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7卷引用:黑龙江省哈尔滨市第三中学2021-2022学年高二上学期10月月考数学试题
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