1 . 在平面直角坐标系
中,点
,点
是平面内的动点.若以PF为直径的圆与圆
内切,记点P的轨迹为曲线E.
(1)求E的方程;
(2)设点
,
,
,直线AM,AN分别与曲线E交于点S,T(S,T异于A),
,垂足为H,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46542271c7fa06f33b222424838c9684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
(1)求E的方程;
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10c64cc584dde9a132ab54c6981cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59cc6019966ce25e3ad146e992f0c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60030f98d7cf695840770c05e63dbd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a31666076b1d37cd2f99afa950da5ab.png)
您最近一年使用:0次
2023-12-18更新
|
1753次组卷
|
5卷引用:湖南省长沙市长郡中学2024届高三上学期期末适应性考数学试题
湖南省长沙市长郡中学2024届高三上学期期末适应性考数学试题广东省广州市2024届高三上学期调研测试数学试题(B)(已下线)模块一 专题2 《解析几何》单元检测篇 B提升卷(已下线)专题11椭圆(3个知识点7个拓展2个突破7种题型2个易错点)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)重庆市南开中学校2023-2024学年高二下学期阶段测试数学试题
2 . 如图,曲线C由上半椭圆
和部分抛物线
连接而成,
与
的公共点为A,B,其中
的离心率为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/84882a85-ecc4-4b67-b9ba-83df54da4075.png?resizew=151)
(1)求a,b的值;
(2)过点B的直线l与
,
分别交于点P,Q(均异于点A,B),是否存在直线l,使得以
为直径的圆恰好过点A,若存在,求出直线l的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f619f9952a6b29614bfaa63ca0018e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c15a1d39a09b004dcbb59d019d75ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/84882a85-ecc4-4b67-b9ba-83df54da4075.png?resizew=151)
(1)求a,b的值;
(2)过点B的直线l与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
名校
解题方法
3 . 已知椭圆
离心率
,设点M和N分别是椭圆上不同的两动点.
(1)求椭圆C的标准方程;
(2)若直线MN过点
,且
,线段MN的中点为P,求直线OP的斜率的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee76e9637ea9efd96e55d208c754b44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
(1)求椭圆C的标准方程;
(2)若直线MN过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cd48cdef1cbc81392acd38a6cad6530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5765c67e2ee7ddc0935328319ec5c0.png)
您最近一年使用:0次
2023-11-25更新
|
705次组卷
|
3卷引用:湖南省长沙市明德中学2023-2024学年高二上学期期末考试数学试卷
名校
解题方法
4 . 在平面直角坐标系
中,已知椭圆C:
(
)的左、右焦点分别为
,且焦距为
,椭圆C的上顶点为B,且
.
(1)求椭圆C的方程;
(2)若直线l过点
,且与椭圆C交于M,N两点(不与B重合),直线BM与直线BN分别交直线
于P,Q两点.判断是否存在定点G,使得点P,Q关于点G对称,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea617baa0c3518c68a4ba38a66d4269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e78e65b66230c8ccb7193ac69ffc85.png)
(1)求椭圆C的方程;
(2)若直线l过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ebd2da016e7029c4dd72b9e377190c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
您最近一年使用:0次
2023-11-23更新
|
354次组卷
|
4卷引用:湖南省长沙市长沙县省示范学校2023-2024学年高二上学期期末检测数学试题
名校
解题方法
5 . 已知椭圆
经过点
,且右焦点为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c872c5d9b620b1b2e114a61a1f9865d8.png)
(1)求C的标准方程;
(2)过点
且斜率不为0的直线l与C交于M,N两点,直线
分别交直线AM,AN于点E,F,以EF为直径的圆是否过定点?若是,求出定点坐标;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee9d4ad39e56940f519bd3acc5e85ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84114a39cd1c55b43da8366588101842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c872c5d9b620b1b2e114a61a1f9865d8.png)
(1)求C的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ec21e660222f593dc2ec2175dd03e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
您最近一年使用:0次
2023-11-16更新
|
505次组卷
|
3卷引用:湖南省长沙市长沙县第二中学2023-2024学年高二上学期期中数学试题
湖南省长沙市长沙县第二中学2023-2024学年高二上学期期中数学试题湖南省五市十校教研教改共同体2023-2024学年高二上学期期中联考数学试题(已下线)微考点6-3 圆锥曲线中的定点定值问题(三大题型)
名校
解题方法
6 . 如图,设P是
上的动点,点D是点P在x轴上的投影,Q点满足
(
).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/37763338-a15c-4467-b8f5-4e6ad24f3596.png?resizew=176)
(1)当点P在圆上运动时,求点Q的轨迹C的方程;
(2)若
,设点
,A关于原点的对称点为B,直线l过点
且与曲线C交于点M和点N,设直线AM与直线BN交于点T,设直线AM的斜率为
,直线BN的斜率为
.
(i)求证:
为定值;
(ii)求证:存在两条定直线
、
,使得点T到直线
、
的距离之积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd89a03660c85fb78bd7fe82ee3068c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c7a5dd3dcfe8d8f01993c3ff1b32a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fbecca12ee62538020483fd55a2109.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/37763338-a15c-4467-b8f5-4e6ad24f3596.png?resizew=176)
(1)当点P在圆上运动时,求点Q的轨迹C的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3cf0f585938ede9eca890a6eb326d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ea1f5bdd213c7c3a571b4c38850bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07f7e233f3074007b2c692777c25019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
(i)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
(ii)求证:存在两条定直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
您最近一年使用:0次
2023-11-16更新
|
681次组卷
|
3卷引用:湖南省长沙市雅礼中学2023-2024学年高二上学期期中数学试题
名校
解题方法
7 . 已知
是椭圆
的右焦点,
为坐标原点,
为椭圆上任意一点,
的最大值为3,
面积的最大值为
.
(1)求椭圆
的标准方程;
(2)点
是
轴正半轴上的一点,过点
和点
的直线
与椭圆
交于
两点.求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c63f99c1d614a7b240d0f86cac3a207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b3fbc12c18f37b2a6becae2e26c4d8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca07069001852295d67c5fb81925c292.png)
您最近一年使用:0次
2023-11-06更新
|
751次组卷
|
2卷引用:湖南师范大学附属中学2024届高三上学期月考(三)数学试题
解题方法
8 . 已知椭圆方程为
,过点
,
的直线倾斜角为
,原点到该直线的距离为
.
(1)求椭圆的方程;
(2)斜率大于零的直线过
与椭圆分别交于点E,F,若
,求直线EF的方程;
(3)对于
,是否存在实数k,使得直线
分别交椭圆于点P,Q,且
,若存在,求出k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/75f236182642bce92ffb3668b325ea5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c09615735d331befd07664aa47cb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆的方程;
(2)斜率大于零的直线过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ab82c33e6c1f8b73628fa78e6868b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c2a0c2cf1480344a0a1453dd84a49d.png)
(3)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ab82c33e6c1f8b73628fa78e6868b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ebce8b2a915356ed39f36c5bad2ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/837fee3d3a6a1313ca120df3e98fd5cc.png)
您最近一年使用:0次
2023-10-11更新
|
662次组卷
|
3卷引用:湖南省长沙市同升湖高级中学2022-2023学年高二下学期数学期中模拟卷
9 . 已知抛物线
的焦点
也是椭圆
的一个焦点,
与
的公共弦长为
.
(1)求椭圆
的方程;
(2)过点
作斜率为
的直线
与
交于
两点,与
交于
两点,且
与
同向.
(i)当直线
绕点
旋转时,判断
的形状;
(ii)若
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d12b5e5ff59f1eea47300d8d7ca9167e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a408c4d7699de3a03e65d741f751c66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4781e3daa2c4e018ca0ae09bb56abc0f.png)
(i)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd1af14f9a53cb0f07d5d28dceba30aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-10-04更新
|
813次组卷
|
4卷引用:湖南省长沙市第一中学2024届高三上学期月考(三)数学试题
湖南省长沙市第一中学2024届高三上学期月考(三)数学试题广东省广州市中山大学附属中学2024届高三上学期期中数学试题河北省高碑店市崇德实验中学2024届高三上学期10月月考数学试题(已下线)广东省广州市中山大学附属中学2024届高三上学期期中数学试题变式题19-22
名校
解题方法
10 . 如图,矩形
中,
分别为线段
上的动点,且满足
.点
关于原点的对称点为
,直线
与
交于点
,则点
到直线
的最小距离为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2770af34e98289b54d37ec725b5c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c87b8e05d61ddc69dbc02772d719d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f229da509d49cebc3ca284fd58c55b76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83847bf2e9122ea6a025efd87bd535f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1748d0813461ae3151f8a07f9dda383e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/5/e7e972c5-2df4-4b47-93e8-a4d3939ed5be.png?resizew=180)
您最近一年使用:0次
2023-10-04更新
|
806次组卷
|
4卷引用:湖南省长沙市第一中学2024届高三上学期月考(三)数学试题
湖南省长沙市第一中学2024届高三上学期月考(三)数学试题辽宁省部分名校2023-2024学年高二上学期联考数学试题(已下线)重难专攻(八)圆锥曲线中的最值(范围)问题(B素养提升卷)广东省广州市天河区广州天省实验学校2023 -2024学年高三上学期中段质量检测数学试题