1 . 在平面直角坐标系
中,以
为极点,
轴正半轴为极轴建立极坐标系,已知曲线
的参数方程为
(
为参数,
),曲线
的极坐标方程为:
.且两曲线
与
交于
两点.
(1)求曲线
的直角坐标方程;
(2)设
,若
成等比数列,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](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/84ffeeba83147ee2ee09c9badf82b408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7a173e175c4e3faf3744ddec885b2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946cb482277bfa88a4168431bc024aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c372007dca89ec8ba17caaf373803ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ffeeba83147ee2ee09c9badf82b408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946cb482277bfa88a4168431bc024aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7490886e2807c7b8a4fa57d99c4dc3a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d53ab127747232dcba28b48514e580.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916df4a05664d4eee67da612ce978bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/572983d18ea0e9ffbf4587fdd415510d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知直角坐标系
中,曲线
的参数方程为
(
为参数).以
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
.
(1)写出
的普通方程和
的直角坐标方程;
(2)设点
为
上的任意一点,求
到
距离的取值范围.
![](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/ab74355c7d60531d416e6a485f9d6b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3660862e4c8103edd61fb80d6f955f64.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
您最近一年使用:0次
2020-03-10更新
|
349次组卷
|
3卷引用:2020届湖南省常德市高三第二次高考模拟考试数学(文)试题
名校
3 . 已知极坐标系的极点为平面直角坐标系的原点,极轴与
轴的非负半轴重合.曲线
的极坐标方程是
,直线
的极坐标方程是
.
(1)求曲线
和直线
的直角坐标方程;
(2)设点
,直线
与曲线
相交于点
、
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85cba49f491d9b5969d971a7bb9a1dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5708218667d3d927e97830924b809f44.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56ab70e602f2e2e291df643ab209162.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/77684b3856f797403b2040c5dc73c2ce.png)
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2020-01-07更新
|
1117次组卷
|
7卷引用:2020届湖南省常德市高三高考模拟考试(一)数学(文)试题
名校
4 . 在直角坐标系xOy中,抛物线C的方程为
,以点O为极点,x轴正半轴为极轴建立极坐标系,直线l的极坐标方程为
,l与x轴交于点M.
求l的直角坐标方程,点M的极坐标;
设l与C相交于A,B两点,若
、
、
成等比数列,求p的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b3932717847eb0859019f07a7445ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3465c86a5c262fb4d36e69adb5f02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b5fc6133bde2006b20e1e83e0b2cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526253844494fed86429e1390505e0db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44333ec94839eee1de0cd38ef9579351.png)
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2019-03-27更新
|
1777次组卷
|
10卷引用:湖南省常德市第二中学2020届高三下学期临考冲刺数学(文)试题
湖南省常德市第二中学2020届高三下学期临考冲刺数学(文)试题湖南省常德市第二中学2020届高三下学期临考冲刺数学(理)试题【市级联考】四川省宜宾市2019届高三第二次诊断性考试数学(文)试题【市级联考】四川省宜宾市2019届高三第二次诊断性考试数学(理)试题四川省成都市石室中学2021-2022学年高三上学期专家联测卷(一)数学(文)试题四川省成都市石室中学2021-2022学年高三上学期专家联测卷(一)数学(理)试题【全国百强校】重庆市西南大学附属中学校2019届高三第九次月考数学(文)试题四川省宜宾市叙州区第二中学校2019-2020学年高二下学期期中考试数学(理)试题四川省宜宾市叙州区第二中学校2019-2020学年高二下学期期中考试数学(文)试题广东省广州市执信中学2018-2019学年高二下学期期中数学(文)试题
5 . 直角坐标系
中,以
为极点,
轴正半轴为极轴建立极坐标系,曲线
的极坐标方程为
,直线
的参数方程为
(
为参数),直线
与曲线
交于
两点.
(1)求
的长度;
(2)若曲线
的参数方程为
(
为参数),
为曲线
上的任意一点,求
的面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5e0a865f840855aa164e2c7c6b1583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b7ad2444534828d4dbb166166c586f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7a84be0c19ec2e40d364f2a2e581d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
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