名校
1 . 在直角坐标系xOy中,曲线C1的参数方程为
(其中α为参数),曲线C2:(x﹣1)2+y2=1,以坐标原点O为极点,x轴的正半轴为极轴建立极坐标系.
(1)求曲线C1的普通方程和曲线C2的极坐标方程;
(2)若射线θ=
(ρ>0)与曲线C1,C2分别交于A,B两点,求|AB|.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60acce7c2fa0f9288f867c14908b7ec7.png)
(1)求曲线C1的普通方程和曲线C2的极坐标方程;
(2)若射线θ=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
您最近一年使用:0次
2018-09-08更新
|
474次组卷
|
9卷引用:河南省灵宝市实验高级中学2017-2018学年度高二下学期第二次月清数学(理)试题
2 . 曲线
上的点到直线
的最大距离为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13987334ab479085dc8939bebe942850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514fdbb5bb097926b912d672a95fdf70.png)
您最近一年使用:0次
2018-07-19更新
|
596次组卷
|
2卷引用:【全国市级联考】河南省鹤壁市2017-2018学年高二下学期期末考试(文科)数学试题
3 . 将曲线
上的点的横坐标伸长为原来的2倍,纵坐标缩短为原来的
,得到的曲线方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbbf52d1f9d61b41bdd4acfc9fac268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 在直角坐标系xOy中,直线l的参数方程为
(t为参数),在极坐标系(与直角坐标系xOy取相同的长度单位,且以原点O为极点,以x轴正半轴为极轴)中,圆C的方程为ρ=2
sin θ.
![](https://img.xkw.com/dksih/QBM/2018/7/16/1989573796995072/1989801926402048/STEM/a5ee47fe34264894af42cc642cd07b46.png?resizew=104)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
(1)求圆C的直角坐标方程;
(2)设圆C与直线l交于点A、B,若点P的坐标为(3,),求|PA|+|PB|.
您最近一年使用:0次
名校
5 . 在以
为极点的极坐标系中,曲线
和直线
相交于
两点.若
是等边三角形,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0cb878349009a779d94b1bc40319bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424c5b900604a324617eb4ac00443818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2018-07-13更新
|
247次组卷
|
2卷引用:【全国市级联考】河南省南阳市2017-2018学年高二下学期期末考试数学(文)试题
6 . 圆
与直线
(
为参数)的位置关系是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c0c48f827696277d127af691b823d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ff34b12f37c259afb81797c6cd74b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.相切 | B.相离 | C.相交且过圆心 | D.相交但不过圆心 |
您最近一年使用:0次
名校
7 . 选修4-4:坐标系与参数方程
在平面直角坐标系
中,曲线
的参数方程为
(
,
为参数),在以
为极点,
轴的正半轴为极轴的极坐标系中,曲线
是圆心在极轴上,且经过极点的圆.已知曲线
上的点
对应的参数
,射线
与曲线
交于点
.
(Ⅰ)求曲线
,
的标准方程;
(Ⅱ)若点
,
在曲线
上,求
的值.
在平面直角坐标系
![](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/5a562688c19761f81165c8c9b148a672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1522bb65cf4212528ab12c6b564d585c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d47dbed3333b180fce58a6d9e440f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e186ebc624ebacde9a03b96289f1ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc10d085db2c2dfc6d637dcbfa24f0d8.png)
(Ⅰ)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(Ⅱ)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/299e193c0bb7580f2e0a6f122634f098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ddbd08862b02e0e94c5e0703afb4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ed9b5847e95c3ca1b76d76f64a7f77.png)
您最近一年使用:0次
2018-07-03更新
|
479次组卷
|
3卷引用:河南省兰考县第二高级中学2017-2018学年高二下学期期末高中抽测调研数学(文)试题
8 . 选修4-4:坐标系与参数方程
在平面直角坐标系
中,圆
的参数方程为
(
为参数).在极坐标系(与平面直角坐标系
取相同的长度单位,且以原点
为极点,以
轴非负半轴为极轴)中,直线
的方程为
.
(Ⅰ)求圆
的普通方程及直线
的直角坐标方程;
(Ⅱ)设平面直角坐标系
中的点
,经过点
倾斜角为
的直线
与
相交于
,
两点,求
的取值范围.
在平面直角坐标系
![](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/4d0d7aab19d643d4de2ff6e1462cf0e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a47d3c2befa4e4076f92b68608c9f81.png)
(Ⅰ)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(Ⅱ)设平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3263811a06227abf213822c14a314dc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.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/3979f27823cdcba516dfa885d8afe19d.png)
您最近一年使用:0次
名校
9 . 在直角坐标系
中,直线
的参数方程为
(
为参数),再以原点为极点,以
轴正半轴为极轴建立极坐标系,并使得它与直角坐标系有相同的长度单位,在该极坐标系中圆
的方程为
.
(1)求圆
的直角坐标方程;
(2)设圆
与直线
交于点
,若点
的坐标为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1e3f7317e3fb6824764e7d51b5e632.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](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/075115a5bc60e9eae149cfae175994fc.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879a4007beef22e009248112d664f7c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c54cd0878ea19f3ae4d35348c04e7f.png)
您最近一年使用:0次
2018-06-24更新
|
379次组卷
|
7卷引用:【全国市级联考】河南省周口市2017-2018学年高二下学期期末考试数学(文)试题
10 . 在直角坐标系
中,曲线
的参数方程为
(
为参数),以原点
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
.
(1)求曲线
的普通方程和曲线
的直角坐标方程;
(2)设
为曲线
上的动点,求点
到曲线
的距离的最小值.
![](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/dbd494adc8e1ca5cc8613069218f97c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.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/cef909e3563897f1e65a9d39f59971c5.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)设
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
您最近一年使用:0次