名校
解题方法
1 . 平面内两定点F1(
,0),F2(
,0),点O为坐标原点,动点P满足F2P的中点E在⊙O:
上,点Q在F1P上且
.
(1)求动点Q的轨迹C的方程;
(2)过点D(3,0)分别作两条直线与轨迹C交于点A,点B.线段DA的中点为M,线段DB的中点为N,若OM⊥ON,求证:直线AB过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0d7704614f7106d3e838c5c121b8f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08227ca941898eb34941f446ca8b1de8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2970ece1dff70d1109579c5b87f035.png)
(1)求动点Q的轨迹C的方程;
(2)过点D(3,0)分别作两条直线与轨迹C交于点A,点B.线段DA的中点为M,线段DB的中点为N,若OM⊥ON,求证:直线AB过定点.
您最近一年使用:0次
2022-03-19更新
|
596次组卷
|
2卷引用:湖南省长沙市第一中学2022届高三下学期月考(八)数学试题
名校
解题方法
2 . 已知椭圆
:
的左、右焦点分别为
,
,椭圆
的离心率为
,椭圆
上的一点P满足
轴,且|
.
(1)求椭圆
的标准方程:
(2)已知点A为椭圆
的左顶点,若点B,C为椭圆
上异于点A的动点,设直线AB,AC的斜率分别为kAB,kAC,且
,求证:直线BC过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.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/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0803835d6f594a60bd16c823e3ad2cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf77228c16fdebd33f449e3975c48bc8.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)已知点A为椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ecdff40dc8025ae9733c61b2ecf9e8.png)
您最近一年使用:0次
解题方法
3 . 设椭圆C:
(
)的左、右顶点分别为A,B,上顶点为D,点P是椭圆C上异于顶点的动点,已知椭圆的离心率
,短轴长为2.
(1)求椭圆C的方程;
(2)若直线AD与直线BP交于点M,直线DP与x轴交于点N,求证:直线MN恒过某定点,并求出该定点.
![](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/5de85df85401e7e8da683ea4a784963c.png)
(1)求椭圆C的方程;
(2)若直线AD与直线BP交于点M,直线DP与x轴交于点N,求证:直线MN恒过某定点,并求出该定点.
您最近一年使用:0次
2022-03-16更新
|
2602次组卷
|
4卷引用:湖北省十堰市县区普通高中联合体2022-2023学年高三上学期11月联考数学试题
名校
解题方法
4 . 已知椭圆
的左、右顶点分别为A,B,点
,连接
交椭圆C于点M、N,
为直角三角形,且
.
(1)求椭圆的标准方程;
(2)设直线l与椭圆C交于D、E两点,若
,求证:直线l过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c10f14aae6fb21e047ecb39cdf40c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c712d023a4e1ade5513a66882b3478.png)
(1)求椭圆的标准方程;
(2)设直线l与椭圆C交于D、E两点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dfc4856e86d8301741cbe2c1e9ce9ec.png)
您最近一年使用:0次
2022-03-16更新
|
852次组卷
|
3卷引用:四川省凉山州宁南中学2021-2022学年高二下学期第一次月考数学(理)试题
5 . 已知
为椭圆
的下顶点,
,
分别为
的左、右焦点,
,且
的短轴长为
.
(1)求
的方程;
(2)设
为坐标原点,
,
为
上
轴同侧的两动点,两条不重合的直线
,
关于直线
对称,直线
与
轴交于点
,求
的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec70b939342a67ae4e7bb00ce489f1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](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/6b67528f875a6d4bac8bbf784f7b66a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d90a03b11a51bd7824aa4094526e5aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c56b0348213284a19e2acc5a088fa491.png)
您最近一年使用:0次
2022-03-10更新
|
694次组卷
|
2卷引用:辽宁省名校联盟2021-2022学年高三3月联合考试数学试题
名校
解题方法
6 . 已知椭圆
:
(
)的短半轴长为
,离心率为
.
(1)求椭圆
的方程;
(2)若直线
:
与椭圆
相交于
,
两点(
,
不是左右顶点),且以
为直径的圆过椭圆
的左顶点
,求证:直线
过定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-03-05更新
|
657次组卷
|
3卷引用:宁夏石嘴山市平罗中学2021-2022学年高二下学期第一次月考数学(理)试题
7 . 已知
,
两点分别在x轴和y轴上运动,且
,若动点G满足
,动点G的轨迹为E.
(1)求E的方程;
(2)已知不垂直于x轴的直线l与轨迹E交于不同的A、B两点,
总满足
,证明:直线l过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cd357b09ef893323574d0173152be6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa1b0e14ddc29c1459b40dd8e4cb173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b75f71a396f2910be554b1c71f51a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ddffc98f53b4c0528a84524d7716811.png)
(1)求E的方程;
(2)已知不垂直于x轴的直线l与轨迹E交于不同的A、B两点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b514eaf1d034ac68a08365a6d656f4d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b99bdd50e548c807255d2f9b8cd16860.png)
您最近一年使用:0次
2022-03-05更新
|
1915次组卷
|
3卷引用:重庆市第八中学校2022-2023学年高二下学期第二次月考数学试题
名校
解题方法
8 . 已知椭圆
的上、下顶点分别为A,B,离心率为
,椭圆C上的点与其右焦点F的最短距离为
.
(1)求椭圆C的标准方程;
(2)若直线
与椭圆C交于P,Q两点,直线PA与QB的斜率分别为
,
,且
,那么直线l是否过定点,若过定点,求出该定点坐标;否则,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/c34e01955f8c8fe2f0041b35d8d602a7.png)
(1)求椭圆C的标准方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.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/ef42faa9d21371359b8a87584bc466f7.png)
您最近一年使用:0次
2022-03-05更新
|
315次组卷
|
2卷引用:福建省同安第一中学2021-2022学年高二下学期第一次月考数学试题
名校
解题方法
9 . 已知椭圆
的离心率为
,右焦点为F,右顶点为A,且
.
(1)求椭圆C的标准方程.
(2)若不过点A的直线l与椭圆C交于D,E两点,且
,判断直线l是否过定点,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/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2515775bb766ebaec1323d42938c4c8a.png)
(1)求椭圆C的标准方程.
(2)若不过点A的直线l与椭圆C交于D,E两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a087becc73721a258db03e347d0134f.png)
您最近一年使用:0次
2022-03-04更新
|
554次组卷
|
3卷引用:江西省赣州市赣县第三中学2021-2022学年高二3月月考数学(文)试题
名校
解题方法
10 . 已知椭圆
上一点
到两焦点的距离之和为
.
(1)求椭圆C的方程;
(2)不经过点
的直线l与x轴垂直,与椭圆C交于A,B两点,若直线BQ与C的另一交点为D,问直线AD是否过定点?若过定点,请求出定点坐标;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74448318cf1342634b794412cc7c7d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(1)求椭圆C的方程;
(2)不经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451fc6e4248b63e70595f23842f06c93.png)
您最近一年使用:0次
2022-03-03更新
|
229次组卷
|
3卷引用:河南省新蔡县第一高级中学2021-2022学年高二下学期3月半月考数学(理科)试题