题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052652-17509.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052652-58925.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052653-36503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052653-54623.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052654-55134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052654-54781.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052654-31361.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052654-62510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052655-11695.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052648-67107.gif)
(坐标系与参数方程选做题)若直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052648-55831.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052648-87465.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052649-47910.gif)
(1).(选修4—4坐标系与参数方程)极坐标方程分别为
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052643-91298.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052643-78382.gif)
(2).(选修4—5 不等式选讲)如果关于x的
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052643-77785.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052644-30131.gif)
(3).(选修4—1几何证明选讲)如图,AD是⊙O的切线,AC是⊙O的弦,过C作AD的垂
线,垂足为B,CB与⊙O相交于点E,AE平分
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052644-39534.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052644-99373.jpg)
已知某曲线的参数方程为
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052639-40903.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052640-58391.gif)
(本小题满分10分)选修4—4:坐标系与参数方程已知直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052635-68978.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052635-85707.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052635-75329.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052635-19392.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052636-64889.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052636-90180.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052635-68978.gif)
(1)写出直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052635-68978.gif)
(2) 线段MA,MB长度分别记为|MA|,|MB|,求
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052636-81655.gif)
(1)(选修4—4坐标系与参数方程)
已知曲线C的极坐标方程是
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052625-48676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052625-26247.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052625-92533.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052625-26247.png)
(2)(选修4—5 不等式选讲)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052625-47908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052626-40759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052626-12800.png)
(3)(选修4—1 几何证明选讲)如图,若
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052626-21800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052627-17180.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052627-16304.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052627-90024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052627-95492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052628-11499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052628-99281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108052628-21411.png)
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