名校
1 . 在直角坐标系中,曲线C的的参数方程为
,t为参数且
.曲线C与x轴交与点A,与y轴交于点B.
(1)求证:
.
(2)以坐标原点为极点,x轴正半轴为极轴建立极坐标系,求以B为圆心,且过原点的圆B的极坐标方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7518cfa5185cf9f306d83545aca485d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51d62df1fa94c360ad5657cda44df7c.png)
(2)以坐标原点为极点,x轴正半轴为极轴建立极坐标系,求以B为圆心,且过原点的圆B的极坐标方程.
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2 . 在平面直角坐标系中,曲线C1的方程为
,曲线C2的参数方程为
(t为参数),直线l过原点O且与曲线C1交于A、B两点,点P在曲线C2上且OP⊥AB.以O为极点,x轴正半轴为极轴建立极坐标系.
(1)写出曲线C1的极坐标方程并证明
为常数;
(2)若直线l平分曲线C1,求△PAB的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f99b71bea536a435f558d319e9af1eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40364f6c7aa7137aef5a54a18358620e.png)
(1)写出曲线C1的极坐标方程并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff24c95fe581befd56c3bcc70e88b726.png)
(2)若直线l平分曲线C1,求△PAB的面积.
您最近一年使用:0次
2023-01-06更新
|
508次组卷
|
8卷引用:四川省德阳市2023届高三第一次诊断考试数学(文)试题
四川省德阳市2023届高三第一次诊断考试数学(文)试题(已下线)四川省德阳市高中2022-2023学年高三上学期第一次诊断考试文科数学试题四川省德阳市高中2022-2023学年高三上学期第一次诊断考试理科数学试题(已下线)专题20坐标系与参数方程四川省泸州市泸县第四中学2024届高三一模数学(文)试题2024届四川省泸州市泸县第五中学高三一模文科数学试题2024届四川省泸州市泸县第五中学高三一模理科数学试题四川省泸州市泸县第四中学2024届高三一模数学(理)试题
3 . 建立极坐标系证明:已知半圆直径
,半圆外一条直线l与AB所在直线垂直相交于点T,并且
.若半圆上相异两点M、N到l的距离
,
满足
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace1feaf4f55f664836584f27ae1470b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab33f3bcad16d49a1ecfe50e299b4c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37a608b9a139cc42e3b293585e877bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40d4cc8903167433159d13fb91e59e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f584e11c6dd6bd57ec1084de71417306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3c50f225b3daca11f40ec027072e8bd.png)
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4 . 在平面直角坐标系xOy中,曲线
的方程为
,点P为曲线
上任意一点,记线段OP的中点Q的轨迹为曲线
,以坐标原点O为极点,x轴正半轴为极轴建立极坐标系.
(1)求曲线
的极坐标方程;
(2)若点M,N分别是曲线
和
上的点,且
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f143ca890a2e92f28a942cbad62781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若点M,N分别是曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d94ef303a6e3c37e71d609cb7a95bfbc.png)
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2022-07-17更新
|
653次组卷
|
4卷引用:陕西省汉中市校际联考2020-2021学年高二下学期期末理科数学试题
5 . 如图所示,已知半圆O的直径为
,l为位于半圆之外,而又垂直于
延长线的一直线,其垂足为T,且
,又M,N是半圆上的不同的两点,
,
,且
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7acd656195631c58a22b060c0d3ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5903d670301ba4abbfda6324be1a30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d9c9b2c01681fab7d312271a860e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8bec9ebcbb0a854dfe16b90a7894c9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab14817a0fe0920d012bf0d81ede4f0a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/0658cae7-9fee-442b-a262-8750ef39329d.png?resizew=188)
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2021-09-25更新
|
228次组卷
|
2卷引用:高中数学解题兵法 第三十三讲 命题之间的转化与变换
6 . 在直角坐标系
中,曲线
的参数方程是
(
为参数),以坐标原点为极点,
轴的正半轴为极轴建立极坐标系.
(1)求曲线
的极坐标方程;
(2)已知曲线
上两点
,
的极坐标分别为
,
,求证:
.
![](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/3f44e1237be15d8bef71d0d33cd9f86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知曲线
![](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/618f23cccdba8f7db0687e9f844509ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c640f9de67df348d9586b63eec7eabd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb149143a2e693abdccd0bb590e51dfb.png)
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2021-11-21更新
|
702次组卷
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5卷引用:河南省重点中学2021-2022学年高三上学期模拟调研(一)数学(文)试题
河南省重点中学2021-2022学年高三上学期模拟调研(一)数学(文)试题河南省重点中学2021-2022学年高三上学期模拟调研(一)数学(理)试题(已下线)河南省名校2021-2022学年高三上学期尖子生11月调研考试数学(理)试题新疆喀什第二中学2022届高三11月月考数学试题黑龙江省哈尔滨市第六中学校2022届高三下学期第一次模拟考试 数学(理)试题
名校
7 . 在直角坐标系
中,曲线
的方程为
,以坐标原点
为极点,
轴的正半轴为极轴建立极坐标系.
(1)点
为
上任意一点,若
的中点
的轨迹为曲线
,求
的极坐标方程;
(2)若点
,
分别是曲线
和
上的点,且
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f143ca890a2e92f28a942cbad62781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若点
![](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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ba4cf66ad78c53705e97578eec1645.png)
您最近一年使用:0次
名校
8 . 在极坐标系
中,直线
过点
与点
.
(1)求直线
的极坐标方程;
(2)已知圆
:
.若曲线
与
,
相交于
,
两点;曲线
与
,
相交于
,
两点,
,
异于极点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241ce9bd28046ce9b90f43b391132884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d16471904aeb42eda3a7d67d5b49080b.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)已知圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab585ff2aeb833fe29e511e37f1e8c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcca436b9f38396dafd79f5e302a6a06.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc1f08c7640e62e8717abf4d44a6c83.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b54e8589dd48a7df492ceebce153f0a.png)
您最近一年使用:0次
2020-05-20更新
|
431次组卷
|
4卷引用:2020届山西省高三下学期4月统考数学(理)试题
9 . 在直角坐标系
中,曲线
的参数方程为
(
为参数),经过变换
后曲线
变换为曲线
.
(1)在以
为极点,
轴的非负半轴为极轴(单位长度与直角坐标系相同)的极坐标系中,求
的极坐标方程;
(2)求证:直线
与曲线
的交点也在曲线
上.
![](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/bf83c66e1c7a55766c4bbf9f32e6047d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a5e2bf35e44ee84ad897d23b1061ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(1)在以
![](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/b4c8a9c4957431681ddfc77895a88508.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5244afeee604ee0de4a822cb71843f3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
12-13高二上·辽宁大连·期末
10 . 在极坐标系中,点
坐标是
,曲线
的方程为
;以极点为坐标原点,极轴为
轴的正半轴建立平面直角坐标系,斜率是-1的直线
经过点
.
(1)写出直线
的参数方程和曲线
的直角坐标方程;
(2)求证直线
和曲线
相交于两点
、
,并求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5760432cb9dd70e6042d5ac29d506c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2030daf33fd69a0ef6ab1a2dedcc7a33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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)求证直线
![](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/13c54cd0878ea19f3ae4d35348c04e7f.png)
您最近一年使用:0次