名校
解题方法
1 . 已如椭圆C:
=1(a>b>0)的有顶点为M(2,0),且离心率e=
,点A,B是椭圆C上异于点M的不同的两点.
(Ⅰ)求椭圆C的方程;
(Ⅱ)设直线MA与直线MB的斜率分别为k1,k2,若k1•k2=
,证明:直线AB一定过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/199f454cb22c34dfa82798ebd6c9054c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(Ⅰ)求椭圆C的方程;
(Ⅱ)设直线MA与直线MB的斜率分别为k1,k2,若k1•k2=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
您最近一年使用:0次
2020-07-25更新
|
460次组卷
|
2卷引用:北京市通州区2019-2020学年高二(下)期中数学试题
名校
解题方法
2 . 在平面直角坐标系
中,设椭圆
(
)的离心率是e,定义直线
为椭圆的“类准线”,已知椭圆C的“类准线”方程为
,长轴长为8.
(1)求椭圆C的标准方程;
(2)O为坐标原点,A为椭圆C的右顶点,直线l交椭圆C于E,F两不同点(点E,F与点A不重合),且满足
,若点P满足
,求直线
的斜率的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](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/fec4c85d2d5b4299c15d2cdb1be02014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be17ceecdc0192766c2429da3970cad5.png)
(1)求椭圆C的标准方程;
(2)O为坐标原点,A为椭圆C的右顶点,直线l交椭圆C于E,F两不同点(点E,F与点A不重合),且满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d6b9ccc3a025e4f11717cfd7ab354b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3cda92fad956987322340273bc04a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
您最近一年使用:0次
2020-07-23更新
|
1142次组卷
|
10卷引用:【南昌新东方】江西省南昌市外国语学校2020-2021学年高二上学期期中数学(理)试题18
(已下线)【南昌新东方】江西省南昌市外国语学校2020-2021学年高二上学期期中数学(理)试题18河南省名校联盟2020届高三下学期6月联考数学(理科)试题(已下线)专题19 圆锥曲线综合-2020年高考数学(理)母题题源解密(全国Ⅱ专版)(已下线)专题19 圆锥曲线综合-2020年高考数学(文)母题题源解密(全国Ⅱ专版)河南省名校联盟2020届高三(6月份)高考数学(理科)联考试题辽宁省辽南协作校2020-2021学年高二上学期期末数学试题辽宁省抚顺二中、沈阳二中等2020-2021学年高二上学期期末考试数学试题(已下线)专题13圆锥曲线范围最值问题(讲)(理科)第一篇 热点、难点突破篇-《2022年高考理科数学二轮复习讲练测》(全国课标版)甘肃省张掖市2021-2022学年高二上学期期末数学(理)试题广东仲元中学2024届高三上学期9月月考数学试题
3 . 如图,圆
与
轴切于点
,与
轴正半轴交于
两点.点
在点
的下方,且
.
![](https://img.xkw.com/dksih/QBM/2020/5/2/2453956687749120/2454864123715584/STEM/bed54e9d2ce04d7eb21e1f61b3116f08.png?resizew=218)
(1)求圆
的方程;
(2)过点
作一条直线与椭圆
相交于
两点,连接
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b45d68e7ef26c34a15988283610c95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7490886e2807c7b8a4fa57d99c4dc3a.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/03f4840c22eb33c7e7115ff911a96be6.png)
![](https://img.xkw.com/dksih/QBM/2020/5/2/2453956687749120/2454864123715584/STEM/bed54e9d2ce04d7eb21e1f61b3116f08.png?resizew=218)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35acbc816706f5349e123e12eb25ea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5ce23462dfd28929430b74b9590940.png)
您最近一年使用:0次
名校
解题方法
4 . 设椭圆
(
)的右焦点为F,右顶点为A,已知
,其中O为原点,e为椭圆的离心率.
(1)求椭圆的方程;
(2)设过点A的直线l与椭圆交于B(B不在x轴上),垂直于l的直线与l交于点M,与y轴交于点H,若
,且
,求直线l的斜率的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b060841938313042cc2963204e7bd17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9715e24d3d634c97cf8e5d2f213d2c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb7c7a86122902dc221e789bc0f9432.png)
(1)求椭圆的方程;
(2)设过点A的直线l与椭圆交于B(B不在x轴上),垂直于l的直线与l交于点M,与y轴交于点H,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb5eebfcd0137dee2c57555dbd44d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6998ed725c3fa91016d84ec789ce89.png)
您最近一年使用:0次
2020-04-18更新
|
276次组卷
|
2卷引用:江苏省无锡市天一中学2018-2019学年高二下学期期中数学(理)试题
5 . 已知椭圆
的左,右焦点分别为
,点
在椭圆
上.
(Ⅰ)求椭圆
的标准方程;
(Ⅱ)设直线
与椭圆
相交于
两点,与圆
相交于
两点,当
的值为
时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5439f5ff9bd5deec0f0ef35c6f605b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e641014eb998f16c14ee0ec59f9d54f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(Ⅱ)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41f1a6a6a0c89f28398774085228976.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/1e4be819fc47b2aa19ab2022b3dfeb6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdf6f64871b0148d887f64ee456f826d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453ea8f3a2b85526b54bf453871c3820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-04-09更新
|
574次组卷
|
2卷引用:2020届四川省成都市高三第二次诊断性检测文科数学试题
6 . 已知椭圆
的离心率为
,椭圆
的长轴长为4.
(1)求椭圆
的方程;
(2)已知直线
与椭圆
交于
两点,是否存在实数
使得以线段
为直径的圆恰好经过坐标原点
?若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff3ca9d16ea262007adb2d58467d78d.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/f0a532e15e232cb4b99a8d4d07c89575.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/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-04-02更新
|
296次组卷
|
2卷引用:宁夏银川三沙源上游学校2019-2020学年高二上学期期中检测数学(理)试题
名校
解题方法
7 . 如图,
,
是离心率为
的椭圆
的左、右焦点,直线
,将线段
,
分成两段,其长度之比为
,设
是
上的两个动点,线段
的中垂线与椭圆
交于
两点,线段
的中点
在直线
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/9969ee4a-86a4-4b66-bac5-e64e8982600e.png?resizew=211)
(1)求椭圆
的方程;
(2)求
的取值范围.
![](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/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509f390ae8f01d41bcf2fe82727e39ba.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/fc5881f1ce9b4172ca346032d0fd1e3d.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/9969ee4a-86a4-4b66-bac5-e64e8982600e.png?resizew=211)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dcbf1ba7f9bc7d6bff898f3274b1c85.png)
您最近一年使用:0次
名校
8 . 如图,椭圆
短轴左、右两个端点分别为
,直线
与
轴,
轴分别交于点
,与椭圆交于两点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/f2294587-6deb-451e-aa3e-c1707887fea9.png?resizew=200)
(1)若
,求直线
的方程;
(2)设直线
,
的斜率分别为
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd5707772e514bfa85467de1a9e0390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd55f837e9c4e6bba1163ef13edd09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/f2294587-6deb-451e-aa3e-c1707887fea9.png?resizew=200)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172c81afc69d89554312ffab3e32ec6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81366cdb4230d53e7fb23fc1145b9e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-03-30更新
|
295次组卷
|
2卷引用:江苏省苏州市外国语学校2019-2020学年高二上学期期中数学试题
名校
解题方法
9 . 已知椭圆
的左、右焦点分别为F1,F2,过点F1的直线与C交于A,B两点.△ABF2的周长为
,且椭圆的离心率为
.
(1)求椭圆C的标准方程:
(2)设点P为椭圆C的下顶点,直线PA,PB与y=2分别交于点M,N,当|MN|最小时,求直线AB的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4294843dc627c5063a09ab944b5dfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67bee78e4e358531389b3aad07e70bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78c38805c09dcfbcc42103308975a74.png)
(1)求椭圆C的标准方程:
(2)设点P为椭圆C的下顶点,直线PA,PB与y=2分别交于点M,N,当|MN|最小时,求直线AB的方程.
您最近一年使用:0次
2020-03-28更新
|
466次组卷
|
3卷引用:重庆市第八中学2019-2020学年高二下学期半期数学试题
名校
10 . 已知椭圆
的离心率为
,
,
分别是椭圆的左、右焦点,直线
过点
与椭圆交于
、
两点,且
的周长为
.
(1)求椭圆
的标准方程;
(2)是否存在直线
使
的面积为
?若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/47ff8a5886e42095da57422c8777c10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)是否存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ff8a5886e42095da57422c8777c10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599cb4a589f90b0205f24c2e1fa021e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-03-21更新
|
1183次组卷
|
3卷引用:河北省武邑中学2018-2019学年高二下学期期中数学(文)试题