1 . 椭圆
与抛物线
有公共点,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9647f94992cce4e7f317712922d92bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-05-20更新
|
470次组卷
|
3卷引用:黑龙江省牡丹江第二高级中学2023-2024学年高二上学期期末数学模拟试卷
名校
解题方法
2 . 过双曲线
的左焦点
的直线交
的左、右支分别于
两点,交直线
于点
,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e00e01c6b751bcb01fbb6d1d0b301e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e95b8386e10aecae05c8ec98fd2e5ab.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-05-08更新
|
970次组卷
|
4卷引用:浙江省宁波市鄞州中学2023-2024学年高二上学期11月月考数学试题
浙江省宁波市鄞州中学2023-2024学年高二上学期11月月考数学试题浙江省绍兴市诸暨市2023届高三下学期5月适应性考试数学试题湖北省荆州市沙市中学2023届高三下学期6月适应性考试数学试题(已下线)第五篇 向量与几何 专题5 调和点列 微点4 调和点列综合训练
解题方法
3 . 在农业生产中,自动化控制技术的应用有效提高了农业生产效率.如图所示,在某矩形试验田
中,
为
中点,
为
中点,三角形
区域种植小麦,梯形
区域种植玉米.为提高劳动效率,节约用水,现采用自动浇水机器人(忽略机器人的面积)对试验田进行灌溉.已知该机器人沿着以
为焦点,
为准线的抛物线运动,且向以自身为圆心,半径为
的圆形区域内浇水.记小麦田能够被机器人灌溉的面积为
,则( )(若直线
与抛物线
相切于点
,平行于
的直线
与
交于
两点,记
与
围成的图形面积为
的面积为
,则
)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/8/c1b1ea7b-130e-42e9-a7a3-db69032da8b3.png?resizew=101)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389bc3f29c058067e06e0d0d2be399da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0edfc3839424ce1badc649649396f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b380fa255b25f1b385d4fae73bf0aa33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4bca27e74a440b335517f635149d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2dca049735b45fb9b2533c68605eddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e453b6640e3dc4c7b7b2a996a2199ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17eefd5373493756cb56389fbec3eca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45cf83ffdd7f12a39d6d2f4c9038cb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/8/c1b1ea7b-130e-42e9-a7a3-db69032da8b3.png?resizew=101)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022高三·全国·专题练习
4 . 如图,椭圆
,抛物线
,设
、
相交于
、
两点,
为坐标原点.若
的外心在椭圆上,则实数
的值_______ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f036026cd92e9ad059c3f22a7658638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e393b3e36390b1354950e2cfccc4967.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/12/10e65738-4648-4d03-acf8-e81ea98a193d.png?resizew=208)
您最近一年使用:0次
名校
解题方法
5 . 已知如图椭圆
的左右顶点为
、
,上下顶点为
、
,记四边形
的内切圆为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/3630e7f0-97cb-442f-bb84-9b629835c2bc.png?resizew=233)
(1)求圆
的标准方程;
(2)已知P为椭圆
上任意一点,过点P作圆
的切线分别交椭圆
于M、N两点,试求三角形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f036026cd92e9ad059c3f22a7658638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e5d91f4f631c580c155eba8c92bda4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/3630e7f0-97cb-442f-bb84-9b629835c2bc.png?resizew=233)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)已知P为椭圆
![](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/22ce50ba5e349425274f05d46d120a74.png)
您最近一年使用:0次
2021-09-16更新
|
755次组卷
|
2卷引用:江苏省徐州市第一中学2023-2024学年高二上学期期中数学试题
名校
6 . 设双曲线
的中心为O,右焦点为F,点B满足
.若在
的右支上存在一点A,使得
且
,则
离心率的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e372bcb0f24754658b568c025b4488b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92de747691a74213071dafd9aa55fcba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6fbe26a99b03b467a2672aecf5038c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
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2021-09-16更新
|
653次组卷
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3卷引用:重庆市第一中学校2023-2024学年高二上学期12月定时练习数学试题
7 . 已知双曲线
的左右焦点分别为
、
,过
作圆
的切线分别交双曲线的左右两支于点B、C,若
,则双曲线的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4be819fc47b2aa19ab2022b3dfeb6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d88f8f6a5ef2408ea59d1a88ff0a30c9.png)
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2021-09-16更新
|
342次组卷
|
2卷引用:浙江省宁波市五校联盟2023-2024学年高二上学期期中联考数学试题
名校
8 . 在椭圆中,
为中心,
为短轴端点,
,
为两个焦点.已知
,且点
到直线
的距离为1,则椭圆的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/f8e512c8b64a394a914766c9d4b95a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da01a3abe1c9dc4e6283afa0dc1a0d39.png)
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名校
9 . 已知P、Q分别是圆
与圆
上的点,O是坐标原点,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6a6164b3d0a9b3f0b38d9bb3335ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844428c990da1537b12389f097b28b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20711dbae4768d5ab6f269932fa05af5.png)
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10 . 如图所示,设k>0且k≠1,直线l:y=kx+1与l1:y=k1x+1关于直线y=x+1对称,直线l与l1分别交椭圆
于点A、M和A、N.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/de2a14e9-1b7a-4097-971d-d543239d8a57.png?resizew=166)
(1)求
的值;
(2)求证:对任意的实数k,直线MN恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8868e2ba4401d727f1bcb1f5483b48f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/de2a14e9-1b7a-4097-971d-d543239d8a57.png?resizew=166)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec01614eda195be40a7d5fd494f7f344.png)
(2)求证:对任意的实数k,直线MN恒过定点.
您最近一年使用:0次
2020-05-11更新
|
616次组卷
|
2卷引用:辽宁省大连市部分学校2023-2024学年高二上学期期末考试数学试卷