题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031452-22349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-12693.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-74268.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-78051.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-21916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-12693.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-78051.png)
A.![]() | B.![]() | C.![]() | D.无数个 |
答案
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-74268.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-21916.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031454-84405.png)
因为,
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031455-57339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-12693.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031453-78051.png)
点评:小综合题,将参数方程化为普通方程,实现了“化生为熟”,研究直线与圆的位置关系,两种思路,一是“代数法”,二是“几何法”。
核心考点
试题【在直角坐标系中,直线的参数方程为.曲线的参数方程为,则直线和曲线的公共点有( )A.个B.个C.个D.无数个】;主要考察你对常见曲线的极坐标方程等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031444-56924.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031444-35401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031445-53536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031445-63862.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031445-16523.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031445-29174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031446-54187.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031446-32576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031446-34204.png)
(1)写出曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031446-32576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031446-12276.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031446-57746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031447-63447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031431-14709.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031431-96868.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031431-54560.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031431-93037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031431-42120.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031432-57953.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031432-19194.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031432-27399.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031431-96868.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031432-47246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031432-57953.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031433-85785.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031433-24276.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031433-94117.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031431-96868.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031432-57953.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031431-96868.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031433-96161.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031434-22214.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031434-46969.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031434-48532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031431-96868.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031434-27732.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031434-91219.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031423-29679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031423-94865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031423-86631.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031424-56020.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031424-64047.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031424-68112.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031424-47482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031425-23790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031425-46796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031423-94865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031425-23790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031425-13231.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031425-93487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031417-56548.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031417-50825.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031417-23271.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031417-78039.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031410-16166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031410-65322.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031410-66833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031411-96588.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031411-61814.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031411-47857.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031411-21769.png)
(1)将曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031411-47857.png)
(2)若直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031410-16166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031411-47857.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031412-32734.png)
最新试题
- 1下列各项词语中没有错别字的一项是( )A.笼络临摹冬蜇鱼舟唱晚B.荟粹肇事滑腻素昧平生C.美馔戮力涅磐迫在眉睫D.
- 2下列各项中加线字的读音有误的一项是( )A.怦然(pēng) 噬碎(shì) 聒噪(guō) 温蠖(huò)B.磅礴
- 3关于经纬线的说法正确的是( )A.沿任何一条经线北行,均能回到原地B.通过地球表面任何一点都只有一条经线C.全
- 4据国家地震台网测定,北京时间2011年10月23日18时41分,在土耳其(北纬38.8度,东经43.5度)(东3区)发生
- 5下列说法中,错误的是[ ]A.等边三角形都相似 B.等腰直角三角形都相似 C.矩形都相似 D.正方形都相似
- 6低档圣诞树是由仿真材料制成的,高档圣诞树由鲜活的树装饰而成。从世界范围看,影响高档圣诞树生产的主导因素是( )A.
- 7把(3x﹣y)看成一个整体,将代数式2(3x﹣y)2﹣3(y﹣3x)3﹣(y﹣3x)+5按(3x﹣y)的降幂排列是(
- 8南水北调工程就是把______丰富的水资源调入缺水严重的______.这项工程分东、中、西三条路线.
- 9The teacher asked us ________ so much noise.A.don"t makeB.no
- 10我国《2004-2010年国家科技基础条件平台建设纲要》指出,要有效改善科技环境,增强持续发展能力,为科技长远发展提供强
热门考点
- 1Football is, I suppose, the most popular game in England. In
- 2下列关于工业革命影响的表述,不正确的是[ ]A.创造了巨大的社会生产力 B.改变了世界的面貌 C.资本主义最终
- 3不定项选择下列说法正确的是( )A.如果地球表面没有大气层,太阳照亮地球的范围要比有大气层时略大些 B.激光是一种人
- 4湄公河号称“亚洲的多瑙河”,此称号主要针对湄公河的什么特点而言[ ]A.是亚洲流经国家最多的河流 B.是亚洲最长
- 5校园里绿草茂密,绿树成荫,虫鸣鸟叫。通过你的调查,你知道了你的校园里有哪些生物吗?把你的调查填写在下表中。
- 6在一定温度下,用铂电极电解饱和Na2SO4溶液,对电解质溶液判断正确的是A.不会有晶体析出B.浓度变大C.浓度变小D.p
- 7下列各反应中SiO2表现的是什么性质或作用?在以下各项中选出正确答案序号填在题后的横线上。①酸性氧化物②弱氧化性③与挥发
- 8已知等腰三角形的两边长分别为5、9,则它的周长为( ) A.19B.23C.14D.19或23
- 9综合性学习(4分)儒雅人生,从阅读开始。国学经典是中华文化的集中体现。千百年来,它像雨露一样,滋润着炎黄子孙的心田;像土
- 10如图11-1-5所示,三根平行长直导线,分别垂直地通过一等腰直角三角形的三个顶点,现在使每条通电导线在斜边中点处所产生的