1 . 已知两圆
.一动圆与圆
相外切,与圆
相内切.设动圆的圆心的轨迹为曲线
.
(1)求曲线
的方程;
(2)
为曲线
上的两动点,直线
的斜率为
,直线
的斜率为
,直线
的斜率为
,其中
为
的等比中项,以
为直径的圆的面积为
,以
为直径的圆的面积为
的面积为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f72cc230a8a4d841d0b3db52a64d2f9.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/eec1776bfd268b6b807ac573b4a87ce6.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)
![](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/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56766837f5503b1ee39fb8e05efc924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531b3540af8141d06802fac03a04cbde.png)
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解题方法
2 . 由伦敦著名建筑事务所SteynStudio设计的南非双曲线大教堂惊艳世界,该建筑是数学与建筑完美结合的艺术品.若将如图所示的大教堂外形弧线的一段近似看成双曲线
下支的一部分,且此双曲线的渐近线方程为
,则该双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/965017ac28701e1bc9afe7668c751950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b75308335340230171130238f4dc6c1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/c9960860-73cd-4a48-9cfa-9ee6817844b0.png?resizew=338)
A.![]() | B.2 | C.![]() | D.![]() |
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解题方法
3 . 如图,
分别为双曲线
的左,右焦点,
在左支上,
在右支上,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,
,则该双曲线的渐近线方程为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/47ebb091-0b2b-4917-b2ed-a951a5c21c33.png?resizew=157)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.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/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ff92b08a5ffacf54db9317714d0300c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/47ebb091-0b2b-4917-b2ed-a951a5c21c33.png?resizew=157)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
4 . 已知圆
上恰有3个点到双曲线
的一条渐近线的距离为2,则该双曲线的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f311044662424f781f2dc018844f435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
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5 .
为坐标原点,以
为准线,
为焦点的抛物线
的方程为:
.过
的直线交
于
两点,
于
于
为线段
的中点.下列选项正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.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/e0e627296086a74b6bec2c13f48ce3ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcd0a07c239333bc9245de3b833043b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e71abd446a59195761c7b1684d73dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5889e1f093f2c35273d3132ef8434e4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
A.![]() ![]() |
B.![]() |
C.直线![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.![]() ![]() |
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解题方法
6 . 直线
与双曲线
的两条渐近线交于
两点,
分别为双曲线的左、右焦点.
(1)求过点
的圆的方程;
(2)设(1)中的圆和双曲线在第一象限交于点
,求圆在点
处的切线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7638c88f01d609d79947033ed4ff36a2.png)
(1)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea98501007b43f9e3253d4ae91a1ae9.png)
(2)设(1)中的圆和双曲线在第一象限交于点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2024-02-18更新
|
92次组卷
|
2卷引用:山东省菏泽市2023-2024学年高二上学期期末教学质量检测数学试题
名校
7 . 在平面直角坐标系中,某菱形的一组对边所在的直线方程为:
,另一组对边
.则下列命题正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918a3d19a84cf5689dc1b0d01b19f618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095101a2f656d85ba4a96d06f4f16ca6.png)
A.![]() |
B.与![]() ![]() |
C.该菱形一定有内切圆和外接圆 |
D.若直线![]() ![]() ![]() |
您最近一年使用:0次
2024-02-18更新
|
72次组卷
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2卷引用:山东省菏泽市2023-2024学年高二上学期期末教学质量检测数学试题
8 . 已知椭圆
的长轴长为4,离心率为
,则该椭圆的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
9 . 已知函数
(
).
(1)是否存在实数
,使得
为函数
的极小值点.若存在,求
的值;若不存在,请说明理由;
(2)若
图象上总存在关于点
对称的两点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d8943bc6210a224a424766c724f89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-01-15更新
|
623次组卷
|
3卷引用:山东省菏泽市单县湖西高级中学北校区2024届高三上学期期末仿真训练数学试题
名校
解题方法
10 . 已知双曲线
的两个焦点分别为
,且满足条件
,可以解得双曲线
的方程为
,则条件
可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fecb84eefb8a3ed8db2ce10acae6b6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4334e343daae170f14d086661bc5792a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.实轴长为4 | B.双曲线![]() |
C.离心率为![]() | D.渐近线方程为![]() |
您最近一年使用:0次
2024-01-10更新
|
1964次组卷
|
10卷引用:山东省菏泽市单县湖西高级中学北校区2024届高三上学期期末仿真训练数学试题
山东省菏泽市单县湖西高级中学北校区2024届高三上学期期末仿真训练数学试题辽宁省沈阳市2023-2024学年高三上学期教学质量监测(一)数学试题吉林省通化市梅河口市第五中学2024届高三上学期期末数学试题(已下线)艺体生一轮复习 第八章 解析几何 第40讲 双曲线【练】宁夏回族自治区银川市贺兰县第一中学2023-2024学年高二上学期期末复习数学试题(二)安徽省宣城市2023-2024学年高二上学期1月期末考试数学试卷浙江省杭州学军中学紫金港校区2023-2024学年高二上学期期末数学试题(已下线)模块七 圆锥曲线(测试)(已下线)专题07 直线与圆、圆锥曲线(已下线)专题4 离心率题 定义方程 【练】