名校
1 . 已知两点
、
,点
是直角坐标平面上的动点,若将点
的横坐标保持不变、纵坐标扩大到
倍后得到点
,且满足
.
(1)求动点
所在曲线
的方程;
(2)过点
作斜率为
的直线
交曲线
于
、
两点,且满足
,又点
关于原点
的对称点为点
,求点
、
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49807c1a0af8d71b05beb2a52b8587b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2429acb6d51f834c6110ae13b18be779.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b572cbfe5491fabd42a5fdd4038a50.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31fc7ab4fee4fe31192f255febb28a60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
您最近一年使用:0次
2 . 已知:椭圆
的焦点在
轴上,左焦点
与短轴两顶点围成面积为
的等腰直角三角形,直线
与椭圆
交于不同两点
、
(
、
都在
轴上方),且
.
(1)求椭圆
的标准方程;
(2)当
为椭圆与
轴正半轴的交点时,求直线
的方程;
(3)对于动直线
,是否存在一个定点,无论
如何变化,直线
总经过此定点?若存在,求出该定点的坐标;若不存在,请说明理由.
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57bf0fc5b77bc942ea9cde80e58a6900.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)对于动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83e1a22106c4e944335eeb749cb0b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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3 . 已知圆
,圆心为点
,点
是圆
内一个定点,
是圆上任意一点,线段
的垂直平分线
和半径
相交于点
在圆上运动.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/2d24f6ba-6fc4-4d8b-9b4e-82a97e9ca5ad.png?resizew=159)
(l)求动点
的轨迹
的方程;
(2)若
为曲线
上任意一点,
|的最大值;
(3)经过点
且斜率为
的直线交曲线
于
两点在
轴上是否存在定点
,使得
恒成立?若存在,求出点
坐标:若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d038b9cfe480f5367391030cb07440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a98eaaab44a91d0bad21dbd260be770.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883147d5e14285f65184f8a75de14221.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/2d24f6ba-6fc4-4d8b-9b4e-82a97e9ca5ad.png?resizew=159)
(l)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229f8fee65d62506665a770192fb4361.png)
(3)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0878af1501b3447c5dc33758fd290b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d70de1ffdd9aa376b09bbcfa12644a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6750bb8fef3bfe7fc30b5aba148ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
名校
4 . 如图,椭圆
的左、右焦点分别为
,
,点
在椭圆上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/0a8cf05c-31a3-4e93-a8d7-81cdde3d7c58.png?resizew=215)
(1)求椭圆的方程;
(2)若A,B是椭圆上位于x轴上方的两点,直线
与直线
交于点P,
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9d55173f26afdf0e37462b556a605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d6f746c2355072d914591bf60c3801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/0a8cf05c-31a3-4e93-a8d7-81cdde3d7c58.png?resizew=215)
(1)求椭圆的方程;
(2)若A,B是椭圆上位于x轴上方的两点,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbad65b3d744b70da2480eee1cdb587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc1bb171ac77bb0246bb73114f83a4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
您最近一年使用:0次
名校
5 . 已知椭圆E的方程为
右焦点为
,直线
的倾斜角为
直线
与圆
相切于点Q,且点Q在
轴右侧,设直线
交椭圆E于两个不同点A、B.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/41cf9755-2f1a-48ae-aaf3-d5d68fd49c67.png?resizew=191)
(1)求直线
的方程;
(2)求△ABF的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/412e1cd1477909974e6db5a8841e6758.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/8727480c1bee756b95cece8f18527cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49137970108f50350a3211aa0281faaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/41cf9755-2f1a-48ae-aaf3-d5d68fd49c67.png?resizew=191)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求△ABF的面积.
您最近一年使用:0次
2019-11-09更新
|
1536次组卷
|
3卷引用:上海市向明中学2018-2019学年高二下学期期中数学试题
上海市向明中学2018-2019学年高二下学期期中数学试题湖北省武汉市新洲区第三中学2020-2021学年高二上学期10月月考数学试题(已下线)重难点01:直线与椭圆的位置关系(分层练习)-2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第一册)
名校
解题方法
6 . 已知椭圆
,若在
,
,
,
四个点中有3个在
上.
(1)求椭圆
的方程;
(2)若点
与点
是椭圆
上关于原点对称的两个点,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cf6cca367ce2afd96d7d951f9587e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d520ab5ab59d374c898428c27ba46e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1721aa6b62fc4c68cb7161f2658117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee252d442a522ca5cf6bf3277ddd590f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若点
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e24f172a287592897ea4378a2ad29013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/660d411077d7809d006fb3d534314ca1.png)
您最近一年使用:0次
2019-09-19更新
|
761次组卷
|
2卷引用:安徽省铜陵市枞阳县浮山中学2019-2020学年高二上学期期中数学(理)试题
名校
7 . 已知椭圆
的焦距为2,左右焦点分别为
,以原点
为圆心,以椭圆
的短半轴长为半径的圆与直线
相切.
(1)求椭圆
的方程;
(2)设不过原点的直线
与椭圆C交于
两点,若直线
与
的斜率分别为
,且
,求证:直线
过定点,并求出该定点的坐标;
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5d58c8c55fc8dac4fcdf3221300316.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设不过原点的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d200a411fbc2f50ad72f1fd729a7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2019-09-13更新
|
1746次组卷
|
6卷引用:山东省淄博市第一中学2022-2023学年高二上学期期中考试数学试题
8 . 已知曲线M上的动点
到定点
距离是它到定直线
距离的一半.
(1)求曲线M的方程;
(2)设过点
且倾斜角为
的直线与曲线M相交与A、B两点,在定直线l上是否存在点C,使得
,若存在,求出点C的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495bb3e5a3a9d35f5c9f0cf1f5d51876.png)
(1)求曲线M的方程;
(2)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
您最近一年使用:0次
名校
9 . 圆O:x2+y2=9上的动点P在x轴、y轴上的射影分别是P1,P2,点M满足
.
(1)求点M的轨迹C的方程;
(2)点A(0,1),B(0,﹣3),过点B的直线与轨迹C交于点S,N,且直线AS、AN的斜率kAS,kAN存在,求证:kAS•kAN为常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d00285706446f20e0955adb5f0de582.png)
(1)求点M的轨迹C的方程;
(2)点A(0,1),B(0,﹣3),过点B的直线与轨迹C交于点S,N,且直线AS、AN的斜率kAS,kAN存在,求证:kAS•kAN为常数.
您最近一年使用:0次
2019-05-30更新
|
1657次组卷
|
5卷引用:广东省深圳市宝安中学2019-2020学年高二上学期期中数学试题
广东省深圳市宝安中学2019-2020学年高二上学期期中数学试题【市级联考】湖南省益阳市2019届高三上学期期末考试数学(理)试题【市级联考】山东省泰安市教科研中心2019届高三考前密卷数学(理)试题(已下线)专题06 解析几何中的定点、定值问题(第五篇)-备战2020年高考数学大题精做之解答题题型全覆盖山东省烟台市莱州市第一中学2020-2021学年高二上学期12月月考数学试题
名校
10 . 已知椭圆
右顶点与右焦点的距离为
,短轴长为
,
为坐标原点.
(1)求椭圆的方程;
(2)过点
的直线
与椭圆分别交于
,
两点,求
的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab9ade9bfd2479c0a61bf0601b46a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21348d39ad9cc9b38d3ae99ce38eeccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
您最近一年使用:0次
2019-05-13更新
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1233次组卷
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3卷引用:山东省临沂第一中学2022-2023学年高二上学期期中线上模拟数学试题