13-14高三·全国·课后作业
名校
1 . 若过点
且互相垂直的两条直线
分别与
轴、
轴交于
、
两点,则
中点
的轨迹方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797c488729678e74e0825c2e92b544b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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7卷引用:2015高考数学(理)一轮配套特训:8-8曲线与方程
(已下线)2015高考数学(理)一轮配套特训:8-8曲线与方程(已下线)专题9.10 第九章 平面解析几何 单元测试(测)【理】-《2020年高考一轮复习讲练测》甘肃省金昌市永昌四中2019-2020学年高二上学期期末考试数学(理)试题四川省成都市玉林中学2023届高三二诊模拟理科数学试题(三)(已下线)模块一 专题12 直线和圆的方程(已下线)第11讲 第二章 直线和圆的方程 章末总结(1)(已下线)第1章 直线与方程章末题型归纳总结(1)
2 . 已知在
上任意一点
处的切线
为
,若过右焦点
的直线
交椭圆
:
于
、
两点,在点
处切线相交于
.
(1)求
点的轨迹方程;
(2)若过点
且与直线
垂直的直线(斜率存在且不为零)交椭圆
于
两点,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3511cdc6a9b56bc1d9415d3d94ef0f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.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/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(2)若过点
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1da2078b8e4cb44d7147917152d601e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69d317dd4d4286e1f6e1a8e02f071d2.png)
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3 . 如图,已知抛物线
,设直线
经过点
且与抛物线
相交于
两点,抛物线
在
、
两点处的切线相交于点
,直线
,
分别与
轴交于
、
两点.
![](https://img.xkw.com/dksih/QBM/2020/6/12/2482807421206528/2483143202717696/STEM/7b12d514-3699-44f9-a876-4f9abc30f73d.png)
(1)求点
的轨迹方程
(2)当点
不在
轴上时,记
的面积为
,
的面积为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243e699ef05dc31d5f577bef2a22801e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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![](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)
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![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/2020/6/12/2482807421206528/2483143202717696/STEM/7b12d514-3699-44f9-a876-4f9abc30f73d.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad5a9147b25285124851a61c7d1a24a.png)
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4 . 已知函数
,若存在非零实数
,使得
成立,则
的最小值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0be5afa2a9e64ec663846e1b4c1404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344c62b469b3d98f80d6ad4069790ade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f164e2348de7d9967b1832004db124.png)
A.![]() | B.![]() | C.16 | D.4 |
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2020-09-12更新
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986次组卷
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5卷引用:浙江省衢州二中2018届高三下学期第二次模拟考试数学试题
浙江省衢州二中2018届高三下学期第二次模拟考试数学试题(已下线)考点11 二次函数与幂函数(考点专练)-备战2021年新高考数学一轮复习考点微专题(已下线)1.5 平面上的距离(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)(已下线)2.3 直线的交点坐标与距离公式-2021-2022学年高二数学同步速效提升练(人教A版2019选择性必修第一册)【学科网名师堂】(已下线)专题07 直线和圆的方程的压轴题(一)-【尖子生专用】2021-2022学年高二数学考点培优训练(人教A版2019选择性必修第一册)
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5 . 已知圆C:x2+y2﹣4y+1=0,点M(﹣1,﹣1),从圆C外一点P向该圆引一条切线,记切点为T.
(1)若过点M的直线l与圆交于A,B两点且|AB|=2
,求直线l的方程;
(2)若满足|PT|=|PM|,求使|PT|取得最小值时点P的坐标.
(1)若过点M的直线l与圆交于A,B两点且|AB|=2
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
(2)若满足|PT|=|PM|,求使|PT|取得最小值时点P的坐标.
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5卷引用:江西省新余一中、樟树中学等六校2019-2020学年高一下学期第二次联考数学(理,创新班)试题
江西省新余一中、樟树中学等六校2019-2020学年高一下学期第二次联考数学(理,创新班)试题河南省济源市2018-2019学年高一上学期末数学试题(已下线)专题08 平面解析几何-【备战高考】2021年高三数学高考复习刷题宝典(解答题专练)江苏省镇江中学2021-2022学年高二上学期期中数学试题河北省衡水市武邑中学2024届高三上学期第三次调研考试数学试题
6 . 已知点P在直线
上,点Q在直线
,
的中点为
,且
,则
的取值范围是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f95667bd5e9245984978e9d4c904a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/618d3271181d4838b9165935b4e7d5f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243b39884bbcaf3c1986f1e2e9854034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71a20a7b1d896434fbebce33760f000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae06797687c534e97965d23f6f451b4.png)
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5卷引用:【市级联考】广东省广州市2019届高三第二次模拟考试数学(文)试题
【市级联考】广东省广州市2019届高三第二次模拟考试数学(文)试题广东省广州市2019届高三普通高中毕业班综合测试(二)文科数学试题2019届北京市中国人民人大附属中学高三(5月)模拟数学(文)试题(已下线)专题9.2 两条直线的位置关系(练)-浙江版《2020年高考一轮复习讲练测》上海市复旦大学附属中学2020-2021学年高二上学期10月月考数学试题
名校
7 . 如图,各棱长均为
的正三棱柱
,
,
分别为线段
,
上的动点,若点
,
所在直线与平面
不相交,点
为
中点,则
点的轨迹的长度是( )
![](https://img.xkw.com/dksih/QBM/2018/11/14/2075305500991488/2077721101197312/STEM/995b02251b23445ca1d6306d587edcae.png?resizew=143)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede6a60cad0e0b58e1549fda6e085719.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/2018/11/14/2075305500991488/2077721101197312/STEM/995b02251b23445ca1d6306d587edcae.png?resizew=143)
A.![]() | B.![]() | C.![]() | D.![]() |
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4卷引用:北京师范大学附中2018届高三下学期第二次模拟文数试题
北京师范大学附中2018届高三下学期第二次模拟文数试题北京市通州区2018届高三上学期期末考试数学理科试题【全国百强校】广东省佛山市第一中学2018-2019学年高二上学期第一次段考数学(理)试题(已下线)【新教材精创】11.3.3平面与平面平行(第2课时)练习(1)
8 . 过动点
作圆:
的切线
,其中
为切点,若
(
为坐标原点),则
的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc6513e7cf46aac4fd44d9f52ffff94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9b8629823993c2c0a95901052adc05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35b1e8a952aac4f4cdaaf02d868d04.png)
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5卷引用:广西南宁市2017届高三普通高中毕业班第二次模拟考试数学(理)试题