1 . 如图,已知
,
为
的中点,分别以
,
为直径在
的同侧作半圆,
,
分别为两半圆上的动点(不含端点
,
,
),且
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/5963abe8f421bd99a2aaa94831a951e9.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/12777a96242feadf7964af7823b7450c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246322a78486fabd66c65dafba8b362d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/180ac02e-b6cb-42f0-8dcb-a9febd98f308.png?resizew=212)
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2018-06-01更新
|
1958次组卷
|
5卷引用:【全国市级联考】辽宁省葫芦岛市2018年普通高中高三第二次模拟考试 数学理
【全国市级联考】辽宁省葫芦岛市2018年普通高中高三第二次模拟考试 数学理天津市2020届数学模拟试题上海市黄浦区格致中学2021届高三上学期期中数学试题(已下线)第1-2章 直线与圆(附加篇:参数方程)(单元培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)(已下线)专题4平面向量综合闯关 (提升版)
2 . 如图,△ABC为等腰三角形,
,
,以A为圆心,1为半径的圆分别交AB,AC与点E,F,点P是劣弧
上的一点,则
的取值范围是______ .
![](https://img.xkw.com/dksih/QBM/2018/1/31/1872448930963456/1873498952097792/STEM/6bdc773b8bea47aba8f7eca30b0571b1.png?resizew=252)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a566b100fb2ebe3d208f9b6527934218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e124a392dc84fcc1662fe6d896aa12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e778fcd92a0c8890b5cd7bed0615486.png)
![](https://img.xkw.com/dksih/QBM/2018/1/31/1872448930963456/1873498952097792/STEM/6bdc773b8bea47aba8f7eca30b0571b1.png?resizew=252)
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2018-02-02更新
|
1924次组卷
|
4卷引用:江苏省苏州市2018届高三调研测试(理)数学试题
名校
3 . 已知
,则
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d5adc28a2e6a09bf36d9eee8a641fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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2020高三·全国·专题练习
4 . 在平面直角坐标系xOy中,圆C的参数方程为
为参数),在以原点O为极点,x轴的非负半轴为极轴建立的极坐标系中,直线l的极坐标方程为
.
(1)求圆C的普通方程和直线l的直角坐标方程;
(2)设直线l与x轴,y轴分别交于A,B两点,点P是圆C上任意一点,求A,B两点的极坐标和△PAB面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f205cb6dff77cd77410e8774e41df4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0695e6146f42b6beb1d9c6234ffa5b8.png)
(1)求圆C的普通方程和直线l的直角坐标方程;
(2)设直线l与x轴,y轴分别交于A,B两点,点P是圆C上任意一点,求A,B两点的极坐标和△PAB面积的最小值.
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名校
5 . 正方形
中,点
在以
为圆心且与直线
相切的圆上运动,若
(其中
,
),则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4ae2789a5e286e2ce63783a7d60165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cefeddff52b02a43831beeb4bb6faa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
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2020-03-16更新
|
930次组卷
|
4卷引用:2019届湖北省黄冈中学高三三诊理科数学试题
2019届湖北省黄冈中学高三三诊理科数学试题2019届湖北省黄冈中学高三三诊文科数学试题山西省太原市第五十六中学2020-2021学年高一下学期第一次月考数学试题(已下线)三省三校2022届高三下学期第一次模拟数学(理)试题变式题11-15
名校
6 . 在平面直角坐标系
中,点
,直线
的参数方程为
(
为参数),以
为极点,
轴的非负半轴为极轴建立极坐标系,曲线
的极坐标方程为
.
当
时,判断直线
与曲线
的位置关系;
若直线
与曲线
相切于点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd896f96a7e29ba461987c23075add3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0b8dd9817108417d1a7a99e989b859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e7490f5a6ddb2feae7b184cc9d4dca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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2020-04-24更新
|
792次组卷
|
2卷引用:2020届全国100所名校最新高考模拟示范卷高三理科数学(六)试题
名校
解题方法
7 . 在平面直角坐标系
中,已知直线
与
轴,
轴分别交于
,
两点,点
在圆
上运动.若
恒为锐角,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/c6f01cf3e63de3d8216f3596ea4b0626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-11-05更新
|
496次组卷
|
3卷引用:河北省石家庄市二十七中2021-2022学年高二上学期第一次月考(10月)数学试题
20-21高二下·浙江·期末
解题方法
8 . 已知
是圆O的一条直径,且
,点C、D是圆O上的两个动点.
(1)若点C满足_______,求
的取值范围:(在①
,②锐角
面积为
,③
这三个条件里任选一个补充在上面问题中,并作答)
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da629847cbcc3c93d085b1dd4b7c7d7.png)
(1)若点C满足_______,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66dfe406ca95f0de467734554d87d10a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22dc02c4f341667adc1d08faf71a5b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf9680f74a9ac5d934304654ce2771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db36388d3dbeb16c3bc852b8d5273bd7.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3728d1c17bd92866025193c752121a7.png)
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名校
9 . 在直角坐标系
中,直线
的参数方程为,
,(
为参数).以坐标原点为极点,以
轴的正半轴为极轴,建立极坐标系,圆
的极坐标方程为
.
求证:直线
与圆
必有两个公共点;
已知点
的直角坐标为
,直线
与圆
交于
,
两点,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ec4ec4b327af5ca3338b5045a707aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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/2837cc78b93d301232934bcaf5fe8e1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/913181ad4837c0c633367878d2d34d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
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名校
10 . 已知曲线
,直线
为参数)过曲线
上任意一点
作与
夹角为
的直线,交
于点
,求
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a4868c29d9de5a7efde4e027e89123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f618b8c02b31f3a21cbb1f92d57dd3a1.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424e15816186bfb42f649e624193dfe2.png)
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