1 . 已知点
在椭圆
上运动,则
的最大值是_________ ;点
到直线
:
的最小距离是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf99adccc80f28343fedd8d0aad7429.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/4166e4e05bfd3ac3e8b739e0541c43ab.png)
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2020-12-16更新
|
348次组卷
|
3卷引用:浙江省杭州外国语学校2020-2021学年高二上学期期中数学试题
2 . 在平面直角坐标系
中,圆
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.
(1)写出圆
的普通方程__________________ ;
(2)直线
的极坐标方程为
,射线
与圆
的交点为
,
两点,与直线
的交点为
,则线段
的长为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ba3e8d7ff1ee57a7a935ff75caddd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)写出圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d35a3b888b1c4880a4347adfad2f689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6b1499efaa11a1152b86fe996f032e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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解题方法
3 . 在空间直角坐标系
中,
,
,且
,则
的最小值是________ ,最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8489518b9e25d72124ae84020562563e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486d2af00f64112d3e590307150448f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a54972a26664eecefe7215745483f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c58dab711fdf19291a878746a1a3fb.png)
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2020-03-18更新
|
325次组卷
|
3卷引用:天津市河西区2019-2020学年高二上学期期末考试数学试题
2013·江西南昌·二模
解题方法
4 . (1)(坐标系与参数方程选做题)已知在极坐标系下,点
是极点,则
的面积等于_______ ;
(2).(不等式选择题)关于
的不等式
的解集是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966c51961c45d53c7f77a4c9dac385a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(2).(不等式选择题)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f76d60bbe381c8d3c66be611007911a.png)
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12-13高三上·山东聊城·阶段练习
5 . 选作题(请在下列2小题中选做一题,全做的只计算第(A)题得分)
(A)在极坐标系中,曲线C1:
,曲线
,若曲线C1与C2交于
两点,则线段
的长度为_________________
(B)对于任意的实数
和
,不等式
恒成立,试求实数
的取值范围._____________
(A)在极坐标系中,曲线C1:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab37e95cbf394528417f55dd6e20811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08ee5e23039fe909db077afcb0ac94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae1567d8f98fabc1a3948f8602cc5e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
(B)对于任意的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1644648016a729c40f923f9e77da58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e8acd0a0c330c8f81a08b92a226f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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10-11高三·江西吉安·阶段练习
6 . (考生注意:请在下列二题中任选一题作答,如果多做,则按所做的第一题评分.)
A.(不等式选讲选做题)不等式
的实数解集为_________ .
B.(坐标系与参数方程选讲选做题)若
的底边
,以
点为极点,
为极轴,则顶点
的极坐标方程为________________ .
A.(不等式选讲选做题)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa18b0bcc3de6ccb111f58a3a9cded1.png)
B.(坐标系与参数方程选讲选做题)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1aa077bfef9b690ba37c2722125e802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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9-10高三·北京·阶段练习
7 . 若直线
与曲线
(ϕ为参数,a>0),有两个公共点A,B,且|AB|=2,则实数a的值为__________ ;在此条件下,以直角坐标系的原点为极点,x轴正方向为极轴建立坐标系,则曲线C的极坐标方程为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7336388221f71b3c52e4c1a38cfad0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9116ce4e0b1896e32485083711f07350.png)
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