名校
1 . 已知极坐标系的极点与平面直角坐标系的原点重合,极轴与x轴的正半轴重合.若曲线
的极坐标方程为
、直线
的极坐标方程为
.
(1)求曲线
和直线
的直角坐标方程;
(2)判断曲线
与直线
的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0cb878349009a779d94b1bc40319bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/806fe7cb1b3c4bb600ec863e65e9e25e.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)判断曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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2020-05-15更新
|
179次组卷
|
2卷引用:2020届江苏省高三高考全真模拟(一)数学试题
名校
2 . 在直角坐标系
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
:
,
:
.
(1)求
与
的交点的极坐标;
(2)设点
在
上,
,求动点
的极坐标方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/4bb8a4fcb41cc101892733a02c98c4d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6fe64775315318a236bd8865ac3a09e.png)
(1)求
![](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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1331eec5883113fde42669e882974df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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3 . 在极坐标系中,曲线
与曲线
相交于
两点,若
,则实数
的值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be9d6af2bf62d82ce4c79141c6d850a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9514468ce4ea82166ffd713a4b0743c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb6573126516181bee81e64513ec1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 在极坐标系中,已知曲线
,
.
(1)求曲线
、
的直角坐标方程,并判断两曲线的形状;
(2)若曲线
、
交于
、
两点,求两交点间的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95446a5cceec22ec6a0c2c161c7d424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee514c47d97f7aa04f0cb3b1ca56f8b9.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若曲线
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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5 . 圆
的圆心为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e8bd01173c217d9b6743b47827c6fa.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
6 . 在极坐标系中,圆
的圆心到极轴的距离为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdebedd02b4ea57f8562443742086d3.png)
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2019-12-08更新
|
397次组卷
|
3卷引用:2018年上海市复旦附中高三5月三模数学试题
7 . 在极坐标系中,曲线
被直线
所截得的弦长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22fae16bd3b560d7b4162fa974616c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95fc45ef428d2de0bf23b66d0e7dc2f4.png)
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2019-07-12更新
|
628次组卷
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3卷引用:福建省泉州市普通高中2018-2019学年高二下学期期末数学试题
解题方法
8 . 在平面直角坐标系
中,直线l经过点
,其倾斜角是
.以原点O为极点,x轴的正半轴为极轴,与直角坐标系
取相同的长度单位建立极坐标系,设曲线C的极坐标方程是
.
(1)若直线l和曲线C有交点,求
的取值范围;
(2)设
为曲线C上任意一点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ba6d181338d6a7c477b8d9c4d4651f.png)
(1)若直线l和曲线C有交点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b134db43c6c869262259d202baf392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfb3efcdf3989e29185db8d886fb612.png)
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9 . 在直角坐标系
中,以原点
为极点,x轴正半轴为极轴建立极坐标系,圆C的极坐标方程为
.
(1)将圆C的极坐标方程化为直角坐标方程;
(2)过点
作斜率为
的直线l,l与圆C交于A,B两点,试求
的值.
![](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/a84dc810d0ba76450dc0e87f8fabbcb2.png)
(1)将圆C的极坐标方程化为直角坐标方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c10f14aae6fb21e047ecb39cdf40c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa1d29d610bf5f13e812124797f2cb79.png)
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2019-07-04更新
|
819次组卷
|
2卷引用:人教A版 全能练习 选修4-4 综合测评 模块结业测评(三)
名校
10 . 在直角坐标系中,曲线
的参数方程为
,
是曲线
上的动点,点
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2da7baec28c0c0da4e7dd0cd2f80b8e2.png)
(Ⅰ)求点
的轨迹方程
;
(Ⅱ)以
为极点,
轴正半轴为极轴的极坐标系中,射线
与曲线
、
交于不同于极点的
两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0887897e934a2bdf9d22cae5d32f272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2da7baec28c0c0da4e7dd0cd2f80b8e2.png)
(Ⅰ)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(Ⅱ)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/734a6a1d319648bb969845a9159cdba7.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/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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