1 . 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)
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2 . 在平面直角坐标系xOy中,已知曲线E经过点P
,其参数方程
(
为参数),以原点O为极点,x轴的正半轴为极轴建立极坐标系.
(1)求曲线E的极坐标方程;
(2)若直线
交E于点A,B,且OA
OB,求证:
为定值,并求出这个定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de261e9b4defbc0be6440397031a87b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafbcbe6e195fd37a474e0b0038037a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)求曲线E的极坐标方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb8956ebcde7cf0f1011a2fc1888e15.png)
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2019-12-27更新
|
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7卷引用:2020届西大附中高三9月月考数学(文)试题
3 . 在直角坐标系
中,已知曲线
(
为参数
),其中
.在以
为极点,
轴的正半轴为极轴的极坐标系中,已知曲线
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8f484bd0144dc12c15cd4a832219f8.png)
(1)求
与
的交点
的直角坐标;
(2)求证:交点
至少有一点在曲线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fc6a3cb8bb9c7624228a71f8495925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823ab696d27d40920c39b8c910789380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10adc3992efb2badc23f81d36faa206f.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/c28564fb3c5854f15b460feb217259c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8f484bd0144dc12c15cd4a832219f8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(2)求证:交点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
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4 . 在平面直角坐标系
中,以坐标原点
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
,若极坐标系内异于
的三点
,
,
都在曲线
上.
(1)求证:
;
(2)若过
,
两点直线的参数方程为
(
为参数),求四边形
的面积.
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0cb878349009a779d94b1bc40319bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e5094ea2e1ae387f33e0b554c60b14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4aecf3b1ceaa9b4f660030672baddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a806e583790b07ed766d51249fa013ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a653c31f6db4cfd6b6b2d7bc5a0424b.png)
(2)若过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea6230afeaa1027dc69969cb5d74c3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5241e0e07a9cd48e4f853405dca1a03.png)
您最近一年使用:0次
2019-04-08更新
|
2892次组卷
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14卷引用:广西名校2021届高三大联考(三)数学(文)试题
广西名校2021届高三大联考(三)数学(文)试题广西桂林、崇左市2021届高三二模数学(理)试题广西桂林、崇左市2021届二模数学(文)试题广西名校2023届高三下学期3月份联考数学(理)试题广西名校2023届高三下学期3月份联考数学(文)试题【校级联考】江西省吉安一中、九江一中、新余一中等八所重点中学2019届高三4月联考数学(理)试题【校级联考】江西省吉安一中、九江一中、新余一中等八所重点中学2019届高三4月联考数学(文)试题【全国百强校】福建省厦门第一中学2019届高三5月市二检模拟考试数学(理)试题江西省临川二中、临川二中实验学校2019-2020学年高三上学期第三次月考数学(文)试题广东省惠州市2019-2020学年高三第三次调研考试文科数学试题广东省惠州市2019-2020学年高三第三次调研考试理科数学试题(已下线)2020届高三12月第01期(考点13)(文科)-《新题速递·数学》2020届高三1月(考点13-14)(理科)-《新题速递·数学》.陕西省西安交通大学附属中学2021届高三下学期第四次模拟考试理科数学试题
5 . 在平面直角坐标系
中,曲线
的参数方程为
(
为参数),以坐标原点
为极点,
轴正半轴为极轴建立极坐标系,已知点
是曲线
在极坐标系中的任意一点.
(1)证明:
;
(2)求
的取值范围.
![](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/591b483d798d8956d0a586070fa8ea75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.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/f23f000cde901cf7032cf3e34963fd8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c036888f401b1c247fbf7d16272ba77b.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2017-12-05更新
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4卷引用:广西贺州市桂梧高中2018届高三上学期第四次联考数学(理)试题