真题
名校
1 . 设有一组圆
:
.下列四个命题其中真命题的序号是____
①存在一条定直线与所有的圆均相切;
②存在一条定直线与所有的圆均相交;
③存在一条定直线与所有的圆均不相交;
④所有的圆均不经过原点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94555857a26590865f337f8c4a93c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2b01c1b7ef8c49b05014f9a016349a.png)
①存在一条定直线与所有的圆均相切;
②存在一条定直线与所有的圆均相交;
③存在一条定直线与所有的圆均不相交;
④所有的圆均不经过原点.
您最近一年使用:0次
2019-12-02更新
|
1321次组卷
|
8卷引用:2011年辽宁省瓦房店市五校高二上学期竞赛数学理卷
2011年辽宁省瓦房店市五校高二上学期竞赛数学理卷四川省南充市高坪区白塔中学2019-2020学年高二上学期期中数学(文)试题(已下线)2.1 圆的方程(B 能力培优练)-2021-2022学年高二数学上学期同步双培优检测(苏教版2019选择性必修第一册)(已下线)专题6 判断位置关系的运算(基础版)2007年普通高等学校招生考试数学(理)试题(江西卷)(已下线)第08讲 圆的方程(3大考点九种解题方法)(3)(已下线)高二上学期期中考试填空题压轴题50题专练-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)第03讲 圆的方程(八大题型)(讲义)-2
9-10高三·湖南衡阳·阶段练习
名校
2 . 函数
的定义域为D,若对于任意
,
,当
时都有
,则称函数
在D上为非减函数,设
在
上为非减函数,且满足以下三个条件:①
;②
;③
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28e384ba050b238e11f7c74d3002aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ee7abd882ba99660bca68ebf544cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104375baf5cef5eb92cfc7cf13b80193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec61a2078466b520ace53a11518589c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d809e8f208c6da2bb9cb7718b60f68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6fabdb77d906cd132e353b89c29190.png)
A.![]() | B.![]() | C.1 | D.![]() |
您最近一年使用:0次
2020-12-30更新
|
660次组卷
|
16卷引用:2011年辽宁省瓦房店市五校高二上学期竞赛数学理卷
2011年辽宁省瓦房店市五校高二上学期竞赛数学理卷(已下线)湖南衡阳市八中2011届高三第二次月考(数学理)(已下线)2011届浙江省温州中学高一上学期期中考试数学卷(已下线)2011届河北省衡水中学高三下学期第一次调研考试理科数学卷(已下线)2012届四川省成都外国语学校高三第4次月考文科数学试卷(已下线)2014届安徽省皖南八校高三第一次联考理科数学试卷(已下线)2015届四川省成都市新都一中高三九月月考理科数学试卷2015届湖北武汉华中师大附中高三上学期期中理数学试卷安徽合肥八中2017-2018学年高三上学期期中试卷数学(文科)试题【校级联考】福建省泉州市安溪一中、养正中学、惠安一中、泉州实验中学四校2018-2019学年高二(上)期中数学试题河南省实验中学2019-2020学年高一上学期第二次月考数学试题湖北省荆州市五县市区2016-2017学年高一上学期期末数学(理)试题(已下线)期末重难点突破专题02-【尖子生专用】2021-2022学年高一数学考点培优训练(人教A版2019必修第一册)北京市第四十四中学2022-2023学年高一上学期期中考试数学试题2016-2017学年湖北省荆州市高一上学期期末考试数学(文)试卷北京名校2023届高三二轮复习 专题一 函数与导数 第1讲 函数的图象性质及应用
3 . 如图所示,在平面直角坐标系
,设点
是椭圆
上一点,左右焦点分别是
、
,从原点O向圆M:
作两条切线分别与椭圆C交于点P、Q,直线OP、OQ的斜率分别记为
、
.
![](https://img.xkw.com/dksih/QBM/2019/1/28/2128338982297600/2128623519653888/STEM/53b8d18a2bc34786aaeaf6ddfa319ad8.png?resizew=244)
(1)设直线
、
分别与圆交于A、B两点,当
,求点A的轨迹方程;
(2)当
为定值时,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22962a2ad892cb6b14ab039a06e8cdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.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/a2f52a90c0488207264fb08d9e0e321c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://img.xkw.com/dksih/QBM/2019/1/28/2128338982297600/2128623519653888/STEM/53b8d18a2bc34786aaeaf6ddfa319ad8.png?resizew=244)
(1)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b67528f875a6d4bac8bbf784f7b66a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183b6a0cef4256c9696a5bca31053da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbea0a24e7c4b7c73d87472d7f540749.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d65bc2ec06351b85b54f54b7f15082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945f0bc28b3d13654f00a88a6fca958.png)
您最近一年使用:0次
4 . 已知实数
、b、c满足
,求
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f9223bc24df8d429d743692fff7c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7ca97c9b586e1c83cad6b9078e84cc.png)
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2010·浙江·一模
名校
5 . 已知中心在原点
,焦点在
轴上,离心率为
的椭圆过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c29aaa3bcd09b9280755cd091b35f6.png)
![](https://img.xkw.com/dksih/QBM/2016/1/5/1572416605102080/1572416610746368/STEM/d1df4eec8801405c8b86d736905516a5.png)
(1)求椭圆的方程;
(2)设不过原点
的直线
与该椭圆交于
两点,满足直线
的斜率依次成等比数列,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c29aaa3bcd09b9280755cd091b35f6.png)
![](https://img.xkw.com/dksih/QBM/2016/1/5/1572416605102080/1572416610746368/STEM/d1df4eec8801405c8b86d736905516a5.png)
(1)求椭圆的方程;
(2)设不过原点
![](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/6ce1e07d1031dd1208dca2528f25fb57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a323e19349e16056e60b3e0b2909e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c17bcffba755a9cb6e159baf59ebeb62.png)
您最近一年使用:0次
2016-12-03更新
|
1349次组卷
|
9卷引用:2012年全国高中数学联赛辽宁赛区预赛试题
(已下线)2012年全国高中数学联赛辽宁赛区预赛试题(已下线)2011届浙江省高三高考样卷数学理卷(已下线)2014届湖南汝城第一中学、长沙实验中学高三11月联考文数学卷2016届湖南省长沙市雅礼中学高三月考三理科数学试卷2016-2017年河南西平县高级中学高二文12月考数学试卷山西省晋城一中2017--2018学年度高二12月月月考数学文试题宁夏回族自治区银川市兴庆区宁一中2019-2020学年高二上学期期中数学(文)试题2020届湖南省长沙市长郡中学高三第五次月考数学(理)试题黑龙江省大庆实验中学(实验三部)2019-2020学年高二3月月考数学(理)试题
6 . 如图,
外接圆圆心为
,
,过点
作
的垂线,垂足为
,作
分别与弧
、边
切于点
类似地,作
与弧
、边
相切.设
的半径分别为
、
,
的内切圆半径为
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7281b641656a5992abaafb4190ca9afc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241465bb8b380fc37d46763241c92e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a644d140135d59cad2180984ae0a1900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce054cdff616f243064da7242d0b4eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7834585a5dd913cc42beb42a453f606d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd33d9abb2babc5fa69d27a0da2f6f7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0802f7f06c7925722cc29c9c5baef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a762847ad0836fe9ae1691e433ae7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1028e94386dd1eacd96310edacf20509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8877c38d15fb2c20245cdf348987258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76bd979c7438c88af5aad8d80a57a1a6.png)
![](https://img.xkw.com/dksih/QBM/2018/12/4/2089522485026816/2091027344703488/STEM/ccf52cf1d3ee4357af191971a1ddec20.png?resizew=217)
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7 . 如图,
、
与
交于点
,
与
的另一个交点为
,经过点
的一条直线分别与
、
交于点
、
,
的延长线与
交于点
,作
与
交于点
,再作
、
分别与
、
切于点
、
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0385df6c7f8ee7ab503b6ed35933695b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd73875650e1538c4c61d5e16d3db29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e86193eb11015543ddb6cc7ef8f26d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0385df6c7f8ee7ab503b6ed35933695b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd73875650e1538c4c61d5e16d3db29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0385df6c7f8ee7ab503b6ed35933695b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd73875650e1538c4c61d5e16d3db29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e86193eb11015543ddb6cc7ef8f26d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82957366f4c9272b6ee99126d4b6bf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e86193eb11015543ddb6cc7ef8f26d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0385df6c7f8ee7ab503b6ed35933695b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd73875650e1538c4c61d5e16d3db29.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/22d6653776b268dcabf2af242450f6f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/fb1f17da-8e75-4150-a0db-072c12bb1515.png?resizew=250)
您最近一年使用:0次
2007高三·辽宁·竞赛
8 . 若关于
的方程
有实根,则
的最小值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8914432b6740ecdd852c1104230e5ef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
您最近一年使用:0次
9 . 在双曲线
:
中,
、
分别为双曲线
的左、右两个焦点,
为双曲线上且在第一象限内的点,
的重心为
,内心为
.
(1)是否存在一点
,使得
?
(2)设
为双曲线
的左顶点,直线
过右焦点
,与双曲线
交于
、
两点.若
、
的斜率
、
满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dad0c75ce33673ec4c425896e8619e4.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9df1061c3ba5151ba2f7359acaf356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
(1)是否存在一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a50b019f59e99972a1f111abe17c203.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
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