题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071452-39310.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071452-94652.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071452-21371.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071452-12639.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071453-54445.gif)
则
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071453-94609.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071453-60193.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071453-64197.jpg)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071454-49802.gif)
解析
核心考点
举一反三
在
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071444-83367.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071445-45631.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071445-68309.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071445-60676.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071445-67993.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071445-85813.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071446-48037.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071446-80155.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071446-44186.gif)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071446-30512.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071447-46922.gif)
(Ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071444-83367.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071447-56090.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071445-85813.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071446-48037.gif)
在
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071437-93871.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071437-75151.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071438-12044.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071438-63524.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071438-45988.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071438-50295.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071438-34162.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071439-97794.gif)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071439-54940.gif)
(Ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071439-31000.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071439-29761.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071438-34162.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071430-87466.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071430-60289.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071430-18867.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071430-16953.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071430-83540.gif)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071430-97511.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071430-26028.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071430-16104.gif)
在
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071422-19641.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071423-19197.gif)
(I)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071423-18767.gif)
(II)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071423-27670.gif)
4. 在△
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071417-61603.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071417-12972.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071418-60976.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071418-12237.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071418-88093.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071418-85835.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071419-85275.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071419-25899.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020071419-85275.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
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