名校
解题方法
1 . 设抛物线
的焦点为
,准线为
,
为过焦点
且垂直于
轴的抛物线
的弦,已知以
为直径的圆经过点
.
(1)求
的值及该圆的方程;
(2)设
为
上任意一点,过点
作
的切线,切点为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d1456d0be6cd8df3b5e254a5e13000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca2d0b475a1c4e3a7164b49643ce334.png)
您最近一年使用:0次
2020-04-17更新
|
721次组卷
|
8卷引用:2020届福建连城县第一中学高三4月模拟考试数学(文)试题
名校
2 . 已知椭圆
:
,
,
分别是椭圆短轴的上下两个端点,
是椭圆的左焦点,P是椭圆上异于点
,
的点,若
的边长为4的等边三角形.
写出椭圆的标准方程;
当直线
的一个方向向量是
时,求以
为直径的圆的标准方程;
设点R满足:
,
,求证:
与
的面积之比为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ed513f56811aa1d314514c5c10d90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef3c9dd64ecdf6d1fc3ab081aeb6a23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09a8ac969e5cec3be6abf4ff44c692e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ed513f56811aa1d314514c5c10d90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef3c9dd64ecdf6d1fc3ab081aeb6a23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa117b0621fb0e843929b033a4c09814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f670b461d9b13df3932d0b0eeaea1f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c1bc582e15c8ae375017eff356fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f670b461d9b13df3932d0b0eeaea1f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372ba3183665678900fbed833aabb3c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9763e9bc0e618b3a6338254410a058c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45e25e267418280b37e7d2f0bef11b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9be82ad7b51f39e8058452b0e87b67.png)
您最近一年使用:0次
2019-11-08更新
|
462次组卷
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4卷引用:上海市华东师范大学第三附属中学2019-2020学年高二上学期12月月考数学试题
上海市华东师范大学第三附属中学2019-2020学年高二上学期12月月考数学试题2019年上海市崇明区高三上学期期末(一模)数学试题2020届湖南省长沙市明达中学高三(高复部)第二次模拟考试理科数学试题(已下线)专题05 平面解析几何-2020年高三数学(理)3-4月模拟试题汇编
3 . 已知圆
的圆心在直线
上,并且经过点
,与直线
相切.
(1)试求圆
的方程;
(2)若圆
与直线
相交于
两点.求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4407788e4dc88210bca71a2551d4f2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ebd2da016e7029c4dd72b9e377190c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
(1)试求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd40f44c911918ee3638eb1a24bb1bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fef976a0230bdfe3bc758e93987ba8.png)
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4 . 如图,圆C与x轴相切于点T(2,0),与y轴的正半轴相交于A,B两点(A在B的上方),且AB=3.
![](https://img.xkw.com/dksih/QBM/2019/7/3/2238774038446080/2239649981079552/STEM/121b476e0a22438e972601582197c6fc.png?resizew=199)
(1)求圆C的方程;
(2)直线BT上是否存在点P满足PA2+PB2+PT2=12,若存在,求出点P的坐标,若不存在,请说明理由;
(3)如果圆C上存在E,F两点,使得射线AB平分∠EAF,求证:直线EF的斜率为定值.
![](https://img.xkw.com/dksih/QBM/2019/7/3/2238774038446080/2239649981079552/STEM/121b476e0a22438e972601582197c6fc.png?resizew=199)
(1)求圆C的方程;
(2)直线BT上是否存在点P满足PA2+PB2+PT2=12,若存在,求出点P的坐标,若不存在,请说明理由;
(3)如果圆C上存在E,F两点,使得射线AB平分∠EAF,求证:直线EF的斜率为定值.
您最近一年使用:0次
2019-07-04更新
|
867次组卷
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4卷引用:浙江省嘉兴市南湖区第一中学2019-2020学年高二上学期期中数学试题
名校
5 . 已知圆
经过两点
,
,且圆心
在直线
:
上.
(1)求圆
的方程;
(2)设圆
与
轴相交于
、
两点,点
为圆
上不同于
、
的任意一点,直线
、
交
轴于
、
点.当点
变化时,以
为直径的圆
是否经过圆
内一定点?请证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dad483f961dc9d4c1516cf9f60138c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c2253ab17833fd3c5807db9f4c5ad03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf73c7f6f8e7ff4c06991b4d6dc0b44.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/d053b14c8588eee2acbbe44fc37a6886.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
您最近一年使用:0次
2019-09-24更新
|
710次组卷
|
3卷引用:江苏省海安高级中学2019-2020学年高二上学期入学考试数学试题
名校
6 . 已知圆
与圆
关于直线
对称,且点
在圆
上.
(1)求圆
的方程;
(2)设
为圆
上任意一点,
,
,
与
不共线,
为
的平分线,且交
于
.求证:
与
的面积之比为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6435c32c37be871ac5979fef58a92d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/599002fa5c20ea8f0f51f0c6df5c1ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60624ea3d81b2082c11d41b7616243d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a5464fa907da1929fcd75813d53c638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9044fb76a51d3a57d78fe2b617d09db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e245ef4143451b0b6a9b9184213aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4505508b3e36db64a207dcdaf8eb22dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31008fac873239d48fc0989bf2961704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fdb049f8af3eede385ec04a07c5f63.png)
您最近一年使用:0次
2018-11-17更新
|
1648次组卷
|
3卷引用:【市级联考】江西省赣州市十四县(市)2018-2019学年高二上学期期中联考数学(文)试题
【市级联考】江西省赣州市十四县(市)2018-2019学年高二上学期期中联考数学(文)试题江西省信丰中学2018-2019学年高二上学期第四次月考数学(文A+理B+)试题(已下线)第2章《圆与方程》 培优测试卷(二)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)
名校
7 . 已知
关于直线
对称,且圆心在
轴上.
(1)求
的标准方程;
(2)已知动点
在直线
上,过点
引
的两条切线
、
,切点分别为
.
①记四边形
的面积为
,求
的最小值;
②证明直线
恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c204fcaf7b3e0d749adea6dafdad3a12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e35701dd16dbf6ec916064880b8b52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
(2)已知动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac076fdca84ebbc3eff76c2021c1412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
①记四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e6fff72898f1f4c319f4b13832f37ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
②证明直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2019-05-12更新
|
3825次组卷
|
10卷引用:辽宁省沈阳市郊联体2020-2021学年高二上学期期中考试数学试题
辽宁省沈阳市郊联体2020-2021学年高二上学期期中考试数学试题【市级联考】山东省潍坊市2018-2019学年高一下学期期中考试数学试题广东省广州市华南师大附中2018-2019学年高一下学期期末数学试题云南省大理州大理市下关第一中学2018-2019学年高一下学期期末数学(理)试题广东省真光中学2021-2022学年高二上学期10月月考数学试题广东省广州市七中2021-2022学年高二上学期期中数学试题(已下线)专题08 与圆有关的定点问题以及阿波罗尼斯圆-【重难点突破】2021-2022学年高二数学上册常考题专练(人教A版2019选择性必修第一册)(已下线)专题13 《圆与方程》中的动点动直线问题(1)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)广东省广州市真光中学2022-2023学年高二上学期10月月考数学试题(已下线)难关必刷03圆的综合问题-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)
名校
8 . 已知圆
与圆
.
(1)求证两圆相交;
(2)求两圆公共弦所在直线的方程;
(3)求过两圆的交点且圆心在直线
上的圆的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918e06b55deedf5d11baa3742a3296b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7fa56fa118b343018941be47958637d.png)
(1)求证两圆相交;
(2)求两圆公共弦所在直线的方程;
(3)求过两圆的交点且圆心在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9615fb005e74640174d0f55e4a18476.png)
您最近一年使用:0次
2018-01-12更新
|
1662次组卷
|
4卷引用:山西省晋城一中2017--2018学年度高二12月月月考数学文试题
名校
9 . 已知圆C:
.
(1)求圆的圆心C的坐标和半径长;
(2)直线l经过坐标原点且不与y轴重合,l与圆C相交于
两点,求证:
为定值;
(3)斜率为1的直线m与圆C相交于D、E两点,求直线m的方程,使
的面积最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c94a8688940cc6628d3386cf957d8f.png)
(1)求圆的圆心C的坐标和半径长;
(2)直线l经过坐标原点且不与y轴重合,l与圆C相交于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c40baffcb91c4d6a69f86a6b6bc5672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fef976a0230bdfe3bc758e93987ba8.png)
(3)斜率为1的直线m与圆C相交于D、E两点,求直线m的方程,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4b17ce6e90cd3810a3696262e94c1e.png)
您最近一年使用:0次
2017-11-10更新
|
1903次组卷
|
3卷引用:2017湖南省普通高中学业水平考试数学试卷
名校
10 . 已知圆心在
轴上的圆
与直线
切于点
.
(1)求圆
的标准方程;
(2)已知点
,直线
与圆
交于
两点.
(ⅰ)求证:
为定值;
(ⅱ)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bba5922f974abd7883d7a5dcddb8e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe3d07387b81817ca97b865e40f68d8.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e258dc5c8b4ea30bca80a56098065402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1325c6fe42a9e5c04520d8a9bb6821b8.png)
(ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fef976a0230bdfe3bc758e93987ba8.png)
(ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576e041b609a0796e51b12e33593ed8e.png)
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2017-12-05更新
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4卷引用:四川省遂宁市2017-2018学年高二上学期期末考试数学文试题
四川省遂宁市2017-2018学年高二上学期期末考试数学文试题四川省遂宁市2017-2018学年高二上学期教学水平监测数学(文)试题黑龙江省牡丹江市第一高级中学2018届高三上学期期中考试数学(文)试题(已下线)2018年高考二轮复习测试专项【新课标文科】热点九 与圆有关的最值问题