1 . 已知定点
,
,动点M满足
.
(1)求动点M的轨迹C的方程;
(2)设
,过点T作与x轴不重合的直线l交曲线C于E、F两点.
(i)过点T作与直线l垂直的直线m交曲线C于G、H两点,求四边形EGFH面积的最大值;
(ii)设曲线C与x轴交于P、Q两点,直线PE与直线QF相交于点N,试讨论点N是否在定直线上,若是,求出该直线方程;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daec826bcf98e738a52fa34eb8a5e85b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1400bea62e9e0bf6c924b796045b3948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe585d05e3156dfeadf46144bd45b38.png)
(1)求动点M的轨迹C的方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1400bea62e9e0bf6c924b796045b3948.png)
(i)过点T作与直线l垂直的直线m交曲线C于G、H两点,求四边形EGFH面积的最大值;
(ii)设曲线C与x轴交于P、Q两点,直线PE与直线QF相交于点N,试讨论点N是否在定直线上,若是,求出该直线方程;若不是,说明理由.
您最近一年使用:0次
解题方法
2 . 已知
为坐标原点,
点在第一象限,
的内切圆
的方程为
,分别以
为圆心作圆,且
两两相外切,则
的标准方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd22409d1cdcf2c0a23c03957e9475c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90037b49d0338c5370e31dd957a02f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06f5e21d225bf3c159ddf3876fbb8fb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b18609d95266520784db4c48df549fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f6558fef858bf27e9811c2d9426fe7.png)
您最近一年使用:0次
解题方法
3 . 已知双曲线
,双曲线
的右焦点为F,圆C的圆心在y轴正半轴上,且经过坐标原点O,圆C与双曲线Γ的右支交于A、B两点.
(1)当△OFA是以F为直角顶点的直角三角形,求△OFA的面积;
(2)若点A的坐标是
,求直线AB的方程;
(3)求证:直线AB与圆x2+y2=2相切.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058cc53728e63b87bd38459286655b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(1)当△OFA是以F为直角顶点的直角三角形,求△OFA的面积;
(2)若点A的坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4974869c2a2d5799281d50abc89e4983.png)
(3)求证:直线AB与圆x2+y2=2相切.
您最近一年使用:0次
2022-11-06更新
|
767次组卷
|
7卷引用:上海市崇明区2022届高考二模数学试题
上海市崇明区2022届高考二模数学试题上海市崇明区2021-2022学年高二下学期期末数学试题圆锥曲线之间的综合问题(已下线)第12讲 直线和圆的方程-3(已下线)专题12平面解析几何必考题型分类训练-4(已下线)专题19 圆锥曲线 (模拟练)-2(已下线)第12讲 双曲线(5大考点)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)
名校
解题方法
4 . 如图,已知定圆
,定直线
,过
的一条动直线
与直线相交于
,与圆
相交于
,
两点,
是
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/23/28f49bdf-3261-4d74-985d-37853a846de9.png?resizew=178)
(1)当
与
垂直时,求证:
过圆心
;
(2)当
时,求直线
的方程;
(3)设
,试问
是否为定值,若为定值,请求出
的值;若不为定值,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0873a0f3245544b4451ec5d2570dbe41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c434abb1778a406a794336b0de0d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/23/28f49bdf-3261-4d74-985d-37853a846de9.png?resizew=178)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b9bfc9045f049b11d4b1c887e6c579.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c53aecada69ab7aa64e233b0a36a916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
5 . 在平面直角坐标系
中,已知圆
的圆心在
轴右侧,原点
和点
都在圆
上,且圆
在
轴上截得的线段长度为3.
(1)求圆
的方程;
(2)若
,
为圆
上两点,若四边形
的对角线
的方程为
,求四边形
面积的最大值;(若A(x1,y1),B(x2,y2)在直线Ax+By+C=0两侧,则(Ax1+By1+C)·(Ax2+By2+C)<0);
(3)过点
作两条相异直线分别与圆
相交于
,
两点,若直线
,
的斜率分别为
,
,且
,试判断直线
的斜率是否为定值,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c9708ef0dc6d6f5dcf6596d3e4f6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(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/d231311a8897586fbb3dd68f764afe92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51fbb4d7aa18b671a845ec7bc67f87d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d231311a8897586fbb3dd68f764afe92.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d200a411fbc2f50ad72f1fd729a7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2021-12-15更新
|
385次组卷
|
2卷引用:上海师范大学附属中学2022-2023学年高二下学期3月第二次月考数学试题
名校
解题方法
6 . 椭圆C:
的离心率为
,以椭圆C的上顶点T为圆心作圆T:
,圆T与椭圆C在第一象限交于点A,在第二象限交于点B.
![](https://img.xkw.com/dksih/QBM/2022/4/23/2964405337653248/2966628238663680/STEM/21e13070f34145d28fb96445442a93e6.png?resizew=321)
(1)求椭圆C的方程;
(2)求
的最小值,并求出此时圆T的方程;
(3)设点P是椭圆C上异于A,B的一点,且直线PA,PB分别与y轴交于点M,N,O为坐标原点,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d27eb9f313d561b0e9073b51af83d5.png)
![](https://img.xkw.com/dksih/QBM/2022/4/23/2964405337653248/2966628238663680/STEM/21e13070f34145d28fb96445442a93e6.png?resizew=321)
(1)求椭圆C的方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29d834a1b26d81576805087241da23e.png)
(3)设点P是椭圆C上异于A,B的一点,且直线PA,PB分别与y轴交于点M,N,O为坐标原点,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43995a8753fb39e768bc0e04a0e2a7b3.png)
您最近一年使用:0次
2022-04-26更新
|
1120次组卷
|
7卷引用:上海市上海中学2022届高三下学期高考模拟1数学试题
7 . 如图,过点
的直线与圆
相交于
,
两点,过点
且与
垂直的直线与圆
的另一交点为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/e4122bbf-1090-4fd1-bdbb-dd0c4c372875.jpg?resizew=171)
(1)当点
坐标为(0,-2)时,求直线
的方程;
(2)记点
关于
轴的对称点为
(异于点
,
),求证:直线
恒过定点;
(3)求四边形
面积
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813597f052c8930e12f0a22aeaa3cce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.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/73adfea97de88f7e0633860512d6dc6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/e4122bbf-1090-4fd1-bdbb-dd0c4c372875.jpg?resizew=171)
(1)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)记点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/274cf35acb4a1748d15c39d15a9bea7b.png)
(3)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2020-12-20更新
|
965次组卷
|
3卷引用:上海市实验学校2022-2023学年高二下学期期中数学试题
8 . 如图,港口A在港口O的正东100海里处,在北偏东方向有条直线航道OD,航道和正东方向之间有一片以B为圆心,半径为
海里的圆形暗礁群(在这片海域行船有触礁危险),其中OB=
海里,tan∠AOB=
,cos∠AOD=
,现一艘科考船以
海里/小时的速度从O出发沿OD方向行驶,经过2个小时后,一艘快艇以50海里/小时的速度准备从港口A出发,并沿直线方向行驶与科考船恰好相遇.
![](https://img.xkw.com/dksih/QBM/2020/6/4/2476974523432960/2478234643357696/STEM/a8aee52d-2c88-43f6-bb56-f991d1be7524.png?resizew=243)
(1)若快艇立即出发,判断快艇是否有触礁的危险,并说明理由;
(2)在无触礁危险的情况下,若快艇再等x小时出发,求x的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a46fd58e40935064129c4676ec310791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992dd866aa5e3a53518a872b034306bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1137bd3216389e0ebc81f6cef8b947.png)
![](https://img.xkw.com/dksih/QBM/2020/6/4/2476974523432960/2478234643357696/STEM/a8aee52d-2c88-43f6-bb56-f991d1be7524.png?resizew=243)
(1)若快艇立即出发,判断快艇是否有触礁的危险,并说明理由;
(2)在无触礁危险的情况下,若快艇再等x小时出发,求x的最小值.
您最近一年使用:0次
名校
9 . 如图,正方形
的边长为
米,圆
的半径为
米,圆心是正方形的中心,点
、
分别在线段
、
上,若线段
与圆
有公共点,则称点
在点
的“盲区”中,已知点
以
米/秒的速度从
出发向
移动,同时,点
以
米/秒的速度从
出发向
移动,则在点
从
移动到
的过程中,点
在点
的盲区中的时长约________ 秒(精确到
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/fb8f58755aee89fb2cf72ba518dcee2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
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2019-12-10更新
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315次组卷
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4卷引用:上海市宜川中学2018-2019学年高二下学期期末数学试题
名校
10 . 在平面直角坐标系
中,已知点
坐标为
,
为圆
上的动点,
为圆
上的动点,则四边形
能构成矩形的个数是( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/905d1a26904e1c5ed4f5d3b389041ef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad15e1a7824d58f881aa5fdae7ca6fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5b6afeb3e389163ba53429af457d725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a0982460d2fdf7f28aabe7f8ae01e6.png)
A.0个 | B.2个 | C.4个 | D.无数个 |
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