题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053639-54548.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053639-96234.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053640-65277.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053640-74823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053640-29444.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053641-36137.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053641-97914.png)
答案 B
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053635-10856.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053635-95066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053635-55383.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053631-55440.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053631-85704.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053631-47880.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053631-48655.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053631-55440.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053625-38734.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053625-28229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053625-82485.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053625-34083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053625-11717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053625-38734.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053616-18990.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053616-83129.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053617-88181.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053617-18073.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053617-75832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053617-45805.gif)
(Ⅰ)求角
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053617-73241.gif)
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053618-63053.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053618-75833.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053618-53061.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053618-75833.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053618-73700.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053610-42594.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053610-53636.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053610-14211.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053610-71775.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053610-64429.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053611-84860.gif)
夹角为
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053611-17366.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053611-20522.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053611-24456.gif)
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