1 . 已知
,直线
.
(1)求证:直线l与
恒有两个交点;
(2)若直线l与
的两个不同交点分别为A,B.求线段
中点P的轨迹方程,并求弦
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481ea96e98812ee280f306ab94bec27d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e26f48978c009cf9ae5ad716634f24.png)
(1)求证:直线l与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
(2)若直线l与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2020-07-28更新
|
210次组卷
|
2卷引用:福建省福州福清市2017-2018学年学年高一上学期期末考试数学试题
2011·宁夏银川·一模
名校
2 . 以直角坐标系的原点O为极点,x轴的正半轴为极轴,已知点P的直角坐标为
,点M的极坐标为
若直线
过点P,且倾斜角为
,圆C以M为圆心、4为半径.
(1)求直线
的参数方程和圆C的极坐标方程;
(2)试判定直线
和圆C的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bbae9c8cdd544071e833ebc1b1ad9ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77820a345a9c7684ece8b94445c5d0ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)试判定直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2016-11-30更新
|
894次组卷
|
17卷引用:2012届福建省福鼎一中高三第二次质检理科数学复习卷(一)
(已下线)2012届福建省福鼎一中高三第二次质检理科数学复习卷(一)(已下线)2011届宁夏银川一中高三第一次模拟考试数学理卷(已下线)2014届内蒙古巴彦淖尔市一中高三上学期期中考试理科数学试卷(已下线)2014届吉林省长春市高中毕业班第一次调研测试理科试卷(已下线)2014届吉林省长春市高中毕业班第一次调研测试文科试卷(已下线)2013-2014学年黑龙江哈尔滨第六中学高二下学期期中考试文科数学卷(已下线)2013-2014学年内蒙古巴彦淖尔一中高二下学期期中考试文科数学试卷2015届吉林省实验中学高三年级第二次模拟考试文科数学试卷2015届甘肃省河西三校普通高中高三上学期第一次联考理科数学试卷2015届甘肃省河西三校普通高中高三上学期第一次联考文科数学试卷黑龙江省海林市朝鲜中学2018届高三高考综合卷(一)数学(文)试题【全国百强校】河南省郑州市第一中学2019届高三上学期入学摸底测试数学(文)试题【全国百强校】江西省新余市第一中学2019届高三第一次模拟考试数学(理)试题(已下线)专题14 坐标系与参数方程——2019年高考真题和模拟题理科数学分项汇编河北省衡水市武邑县2019-2020学年高三上学期12月月考数学(文)试题(已下线)专题13.5 第十三章 选考部分(单元测试)(测)【理】-《2020年高考一轮复习讲练测》甘肃省庆阳市宁县第二中学2019-2020学年高二下学期期中考试数学(文科)试题
名校
解题方法
3 . 已知两平行直线
之间的距离等于坐标原点
到直线
的距离的一半.
(1)求
的值;
(2)判断直线
与圆
的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/056464ff7293c78faa45e13bcd7e0849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c56ef2968e64d60869abb63a3bc388df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7656dc4448c56ae487419a9e8bed3ffb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf10c55340c16450cdc1c809fd328ab.png)
(2)判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e6755092cfd9b22dc96d26e660f212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f2abcab7af6dcc0fe9409d6e993914.png)
您最近一年使用:0次
2020-09-06更新
|
184次组卷
|
7卷引用:2016-2017学年福建省南平市高一上学期期末质量检查数学试卷
4 . 以直角坐标系的原点
为极点,
轴的正半轴为极轴,已知点
的直角坐标
,点
的极坐标为
,若直线
过点
,且倾斜角为
,圆
以
为圆心、
为半径的圆.
(1)写出直线
的参数方程和圆
的极坐标方程;
(2)试判定直线
和圆
的位置关系.
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/148d97803c3b16893ced41ad5cd9aba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce67d3eda736d108e7f5a5e9e65fc748.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/2d88591679796c52024d11c4de641bdb.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/6f8c4c029e552954bd493b49aeab82d5.png)
(1)写出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)试判定直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
名校
5 . 已知菱形
,
在
轴上且
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(
,
).
(1)求
点轨迹
的方程;
(2)延长
交轨迹
于点
,轨迹
在点
处的切线与直线
交于点
,试判断以
为圆心,线段
为半径的圆与直线
的位置关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a2b8b43e1fe82fc439d145e91b860c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9093fb99b3d20355576d020ed98a1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823ab696d27d40920c39b8c910789380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c023f4b501684abd869b36d6e6c7f21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/14/92e0537a-fe1c-4ef6-9d4f-43c9e53fddde.png?resizew=234)
您最近一年使用:0次
6 . 已知直线
,直线
经过点
且与
垂直,圆
.
(I)求
方程;
(Ⅱ)请判断
与
的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fc316966a38cfac924cfaeb10813bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9b5e076078240e0c5ad9763a9824d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bddf46e1b8395edb130c35e3e6316128.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(Ⅱ)请判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2011·北京朝阳·一模
名校
7 . 已知
,
为椭圆
的左、右顶点,
为其右焦点,
是椭圆
上异于
,
的动点,且
面积的最大值为
.
(Ⅰ)求椭圆
的方程及离心率;
(Ⅱ)直线
与椭圆在点
处的切线交于点
,当直线
绕点
转动时,试判断以
为直径的圆与直线
的位置关系,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44095accc17467f9721ef46c879d8613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7406e11d72eaece13b00dd40b5c300b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2cc5f8cec8c498aa12c99c04e1c97d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
您最近一年使用:0次
2016-11-30更新
|
879次组卷
|
6卷引用:2015届福建省福州市第八中学高三毕业班第六次质量检查理科数学试卷
2015届福建省福州市第八中学高三毕业班第六次质量检查理科数学试卷(已下线)2011届北京市朝阳区高三第一次综合练习数学理卷(已下线)2011届年山东省枣庄市高三4模拟考试理数(已下线)2013届中国人民大学附属中学高考冲刺二理科数学试卷北京东城区171中学2018届高三上学期期中考试数学试题河南省睢县高级中学(清北部)2021-2022学年高三上学期12月月考数学(理)试题
名校
8 . 已知椭圆
:
的两个焦点与短轴的一个端点恰好围成一个面积为
的等边三角形.
![](https://img.xkw.com/dksih/QBM/2020/5/12/2461204694867968/2461307719557120/STEM/7117356797ea45b38951723ddfb410cf.png?resizew=211)
(1)求椭圆
的方程;
(2)如图,设椭圆
的左右顶点分别为
、
,右焦点为
,
是椭圆
上异于
,
的动点,直线
与椭圆
在点
处的切线交于点
,当点
运动时,试判断以
为直径的圆与直线
的位置关系,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/2020/5/12/2461204694867968/2461307719557120/STEM/7117356797ea45b38951723ddfb410cf.png?resizew=211)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,设椭圆
![](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/a0ed1ec316bc54c37c4286c208f55667.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
您最近一年使用:0次
9 . 已知动直线l:
与圆C:
.
(1)求证:无论m为何值,直线l总过定点A,并说明直线l与圆C总相交.
(2)m为何值时,直线l被圆C所截得的弦长最小?请求出该最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad5f59d81e2920c319d9583bf714cb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b635ffcd3a791be3f68caaf8835528.png)
(1)求证:无论m为何值,直线l总过定点A,并说明直线l与圆C总相交.
(2)m为何值时,直线l被圆C所截得的弦长最小?请求出该最小值.
您最近一年使用:0次
2016-12-04更新
|
799次组卷
|
3卷引用:2015-2016学年福建省龙海市程溪中学高一下期中数学试卷
11-12高三下·福建泉州·阶段练习
10 . 已知圆
:
交
轴于A,B两点,曲线C是以AB为长轴,离心率为
的椭圆,其左焦点为F.若P是圆O上一点,连接PF,过原点O作直线PF的垂线交直线
于点Q.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/5/791f2f33-7b8c-44dd-be50-ceff1589f863.png?resizew=166)
(1)求椭圆C的标准方程;
(2)若点P的坐标为(1,1),求证:直线PQ圆O相切;
(3)试探究:当点P在圆O上运动时(不与A、B重合),直线PQ与圆O是否保持相切的位置关系?若是,请证明;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61985901c2bc698d72ac88f4e1eb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/5/791f2f33-7b8c-44dd-be50-ceff1589f863.png?resizew=166)
(1)求椭圆C的标准方程;
(2)若点P的坐标为(1,1),求证:直线PQ圆O相切;
(3)试探究:当点P在圆O上运动时(不与A、B重合),直线PQ与圆O是否保持相切的位置关系?若是,请证明;若不是,请说明理由.
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