题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031506-97864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031506-43171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031507-43312.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031507-77190.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031507-32351.png)
(1)试写出直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031508-65524.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031507-77190.png)
(2)在曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031507-77190.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031508-65524.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031508-68365.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031508-13751.png)
解析
试题分析:解:(1)由题意知,直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031508-65524.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031508-84272.png)
∵曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031507-77190.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031509-45478.png)
∴曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031507-77190.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031508-68365.png)
(2)设点P的坐标
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031509-15419.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031508-65524.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031509-38565.png)
∴当sin(600-θ)=1时,点
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031509-87432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031508-13751.png)
点评:解决极坐标系中的问题,需将问题转化为直角坐标系中的问题,其中的转化式是
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031510-34312.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031510-14386.png)
核心考点
试题【在平面直角坐标系xOy中,已知曲线,将上的所有点的横坐标、纵坐标分别伸长为原来的、2倍后得到曲线. 以平面直角坐标系xOy的原点O为极点,x轴的正半轴为极轴,取】;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/20191108/20191108031501-69975.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108031501-97139.png)
![](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 |
![](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)
最新试题
- 1We all like the way _____ the teacher gives his lessons.A.wh
- 2第三部分 阅读理解(共20小题,每小题2分,满分40分)请认真阅读下列短文,从短文后各题所给的A、B、C、D四个选项中,
- 3直线l1,l2的倾斜角分别为α,β,且 1+tanβ-tanα+tanαtanβ=0,则l1到l2的角等于( )A.
- 4读下面的四幅省级行政区轮廓图。回答3、4题。小题1:四省区中,纬度最高的是: ( )A.①B.②C.③D.④小题2
- 5在“研究匀变速直线运动”的实验中,用打点计时器记录纸带运动的时间。计时器所用电源的频率为50Hz,图为一次实验得到的一条
- 6设集合,则A所表示的平面区域(不含边界的阴影部分)是
- 7以下物质间的转化中,其中有不能通过一步反应实现的是A.Al-Al2O3-Al(OH)3-NaAlO2 B.Fe-FeCl
- 8Life is ____ roses, but with what Iam being equipped with b
- 9某食品厂生产的山楂片配料是:山楂、白砂糖、麦芽糖浆、水、食用色素等.此山楂片中不含有的营养素是( )A.糖类B.维生素
- 10计算:1x-4-8x2-16.
热门考点
- 1已知求的值.
- 2一物体由静止沿一足够长光滑斜面匀加速下滑距离为L时,速度为v,此后继续下滑,当它的速度增至2v时,它又沿斜面继续下滑的距
- 3下列有关昆虫的描述错误的是( )A.是种类最多的一类动物B.有三对足,能爬行或飞行C.是无脊椎动物中唯一会飞的动物D.
- 41861年,沙皇亚历山大二世签署了废除农奴制度的法令,法令宣布,农奴在法律上是“自由人”。这次改革的后果是①农奴获得了人
- 5阅读下面的文字,完成小题。当前世界影视文化在经济全球化趋势的影响下,已经完全进入商业化运作轨道。在商业化的影响下,影视产
- 6“凡中国人与英国人‘交涉词讼’,其英人如何科罪……发给管事官(英国领事)照办”。外国人取得上述特权始于A.19世纪20年
- 7用符号(x]表示小于x的最大整数,如(π]=3,(-1.2]=-2.有下列命题:①若函数f(x)=(x]-x,x∈R,则
- 8下列有关热现象的叙述中正确的是A.布朗运动反映了液体分子的热运动B.物体的内能增加,一定是由于物体从外界吸收了热量C.凡
- 9m为何值时,代数式2m-5m-13的值比代数式7-m2的值大5?
- 10下列混合物的分离方法不正确的是 ( )A.苯和