名校
解题方法
1 . 已知
分别为椭圆
的左、右焦点,A为右顶点,B为上顶点,若在线段AB上有且仅有一个点P使
,则椭圆
离心率的取值范围为______ (写成集合或区间形式).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a70ac71550d9280fe969ded947e7e2b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c6162828793e697cb1ad643b287c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1086f33fd5082e6d19694093c4174c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2023-12-20更新
|
1054次组卷
|
5卷引用:四川省成都市蓉城名校2023-2024学年高二上学期期末联考数学试题
2 . 在平面直角坐标系xOy中,已知圆锥曲线
,对于曲线
上的点
,它对应的曲线
在点
的切线方程为
.例如对于抛物线
在点
处的切线方程为
即
.设抛物线
,过点
引抛物线C的切线,切点记作A,B.
(1)求直线AB的方程;
(2)设经过三点A,B,M的圆记作圆N,已知动直线l与圆
相切且与圆N相交于E,F,求弦长
取得最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a53d5d9a1d12590334781f71d2a071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbec8b46231e412ddce55cc96634e182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbec8b46231e412ddce55cc96634e182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284aece5d76e6af560fbf472be277090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/959e5ab675f526dfb54b05f8f82151b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c974ba30f3f9455c1ae00cc0653ee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baabfd32465e9e50409413d9c1358279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/068070122e10cd0be6fcb91cfeb40639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35194af2e4ba8bc8daa61f19df87701.png)
(1)求直线AB的方程;
(2)设经过三点A,B,M的圆记作圆N,已知动直线l与圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d15804882ad0df60e3967753214087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1c33a1ced5cfb0f95898a479cc6018.png)
您最近一年使用:0次
解题方法
3 . 已知曲线
,曲线
,若
的顶点的
坐标为
,顶点
分别在曲线
和
上运动,则
周长的最小值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a259dddccc3cfe8f81735cd5834785d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dca1f1e773848ed02ccafa6b7772ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf1bce17440e83c1b735d2954010a2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd94fcfa74db7040a52f2d329247bddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.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/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-12-18更新
|
303次组卷
|
2卷引用:上海市浦东新区2024届高三上学期期末教学质量检测数学试题
4 . 已知圆
过点
,且与直线
相切于点
.
(1)求圆C的方程;
(2)若
、
在圆
上,直线
,
的斜率之积为
,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2eb18bd9c658b727ea362cd4a5186e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcaada7649455fbebcdbdbb9a94e6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f54dd475ff1321041c80738b201c3b6.png)
(1)求圆C的方程;
(2)若
![](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/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2023-12-15更新
|
511次组卷
|
2卷引用:江苏省启东市2023-2024学年高三上学期期中质量监测数学试卷
名校
解题方法
5 . 已知圆C与直线
相切于点
,且圆心C在x轴的正半轴上.
(1)求圆C的方程;
(2)过点
作直线交圆C于M,N两点,且M,N两点均不在x轴上,点
,直线BN和直线OM交于点G.证明:点G在一条定直线上,并求此直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276e0fc0eb117d9504dcee30c86650c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aedad6bb70631b944c69f8f0b02b35d6.png)
(1)求圆C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
您最近一年使用:0次
解题方法
6 . 设a为实数,
是以点
为顶点,以点
为焦点的抛物线,
是以点
为圆心、半径为1的圆位于y轴右侧且在直线
下方的部分.
(1)求
与
的方程;
(2)若直线
被
所截得的线段的中点在
上,求a的值;
(3)是否存在a,满足:
在
的上方,且
有两条不同的切线被
所截得的线段长相等?若存在,求出a的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1a9821a00b71f6b7d7a76d91b3f810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302aab606cd719baba3de2574ed69457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d8da179d60dd9ec6ece6de442ae1b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/6c63e29e-4715-48e2-a049-e517fe67b94c.png?resizew=117)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
(3)是否存在a,满足:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
您最近一年使用:0次
名校
7 . 已知圆
与圆
,则下列说法正确的是
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c1c01121e7c2a52ebe672eeecc38840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c691b4c8e9d3d50c179eb5850f930379.png)
![](https://img.xkw.com/dksih/QBM/2023/11/18/3370788760117248/3371178539253760/STEM/3f563d83b647455886b77838eb91139c.png?resizew=4)
A.圆![]() ![]() |
B.若圆![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-12-02更新
|
549次组卷
|
3卷引用:黑龙江省大庆市萨尔图区东风中学2023-2024学年高二上学期期中数学复习题
名校
8 . 已知圆
的方程为
,直线
,点
是直线
上的一动点,过
作圆
的两条切线,切点分别为
,当四边形
的面积最小时,直线
的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08227ca941898eb34941f446ca8b1de8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb294679d7751d992a54b06f0d0a912.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11324107848a06118e570f95bff47a12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-11-29更新
|
181次组卷
|
2卷引用:山东省济宁市兖州区2023-2024学年高二上学期期中考试数学试题
9 . 在平面四边形
中,
,
,
,
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea16ceca816f7d3d50650af141baf42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2d3f02cb9007cd4a90ea30f6dd8181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f3463a5540548211d0b5bcfe11aeded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4388577dc452ba9d9caf47d81e6f10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
A.![]() | B.2 | C.3 | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 设曲线C的方程为x2+y2=2|x|-2|y|,则( )
A.曲线C既是轴对称图形,又是中心对称图形 |
B.曲线C围成图形的面积为![]() |
C.曲线C的周长为![]() |
D.曲线上任意两点间距离的最大值为4 |
您最近一年使用:0次
2023-11-23更新
|
312次组卷
|
3卷引用:江苏省曲塘高级中学2023-2024学年高二上学期期中考试数学试卷