1 . 在极坐标系中,直线
的极坐标方程为
,设抛物线
的参数方程为
(
为参数,
),其焦点为
,点
(
)是抛物线
上一点,圆
与线段
相交于点
,且被直线
截得的弦长为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff24d4627c643c5aeee873c6e1e626aa.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4845668dd7d5dcd7225a1d5e3c03c411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9d33ad04959ff0d34b542735b3a039c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94367c41f40b35088f9ab3b84f3a37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff24d4627c643c5aeee873c6e1e626aa.png)
您最近一年使用:0次
解题方法
2 . 在直角坐标系中,已知直线
的参数方程为
(
为参数),以该直角坐标系的原点为极点,
轴的正半轴为极轴建立极坐标系,曲线
的极坐标方程为
,则直线
被曲线
截得的弦的长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9256e35f65c518ed56342e2e1f314219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08075b3b73dd2609baad69a496fdd9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ec2e819e90d8e1535e7d4a3b6b0fa1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
您最近一年使用:0次
解题方法
3 . 若点
在以
为焦点的抛物线
(
为参数)上,则
等于_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baed36372caeb790bb9fce7c36b8e047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1655d22acbd34aa7b06bd7f92ead328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac654a052f98d1ccb7fede1f122cec3.png)
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2018高二下·全国·专题练习
名校
4 . 已知点P的直角坐标按伸缩变换
变换为点
,限定
时,点P的极坐标为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e537c6a7bbdfab0cd0f0991f28d3d5bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf88150ff4d7850d84b56c7ebd71c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7501a832f6d232bce6399125083715a2.png)
您最近一年使用:0次
2018-05-16更新
|
644次组卷
|
6卷引用:【全国市级联考】江西省泰和县二中、吉安县三中、安福县二中2017-2018学年高二下学期三校联考数学(理)试题
解题方法
5 . 以直角坐标系的原点为极点,x轴的正半轴为极轴,并在两种坐标系中取相同的长度单位,已知直线极坐标方程为
,它与曲线
,
为参数
相交于两点A、B,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e227099709ed1ada8dfef505bdb38762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf183a6eb5af6c45dbbc6f68c4907a8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608172a5a6acb7aec81dc3791c2f287e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
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2018-05-03更新
|
568次组卷
|
2卷引用:【全国校级联考】天津市十二校2018年高三二模联考数学(理)试题
6 . 椭圆的长轴长等于
,短轴长等于
,则此椭圆的内接矩形的面积的最大值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2018-04-27更新
|
325次组卷
|
3卷引用:上海市虹口区2018届高三下学期教学质量监控(二模)数学试题
7 . 直线
的参数方程为
(
为参数),则
的一个法向量为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/410d629a44a33aa55701b4cfc6af0acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
名校
8 . 在平面直角坐标系
中,直线
的参数方程为
(
为参数),椭圆
的参数方程为
(
为参数),则直线
与椭圆
的公共点坐标为__________ .
![](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/6599b5edd34d52579cdc99a4b9541466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3dea885e97fe87e45d44806c105c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](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
2018-04-19更新
|
379次组卷
|
3卷引用:上海市普陀区2018届高三下学期质量调研(二模)数学试题
上海市普陀区2018届高三下学期质量调研(二模)数学试题江西省景德镇市浮梁县第一中学2020-2021学年高二5月月考数学(文)试题(已下线)课时36 椭圆-2022年高考数学一轮复习小题多维练(上海专用)
解题方法
9 . 在平面直角坐标系
中,已知抛物线
(
为参数)的焦点为
,动点
在抛物线上.以坐标原点为极点,
轴的非负半轴为极轴建立极坐标系,动点
在圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a20b8ae00635846e8ad10c778196114.png)
上,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f595a14b15d94710bda2b8c80f2eaa05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a20b8ae00635846e8ad10c778196114.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff21811ea84135ab28112ae687268f3.png)
您最近一年使用:0次
2011·北京东城·一模
名校
10 . 已知曲线
的参数方程为
为参数),则曲线上点
到直线3x-4y+4=0的距离的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546bf73e04381d5e1b30e3d97e7e54c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2017-06-13更新
|
420次组卷
|
3卷引用:2011届北京东城区模拟考试高三数学(一)(理科)
(已下线)2011届北京东城区模拟考试高三数学(一)(理科)江西省金溪县第一中学2016-2017学年高二下学期第二次月考(5月)数学(文)试题河南省焦作市第十一中学2022-2023学年高二下学期3月月考数学试题