题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013549-75348.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013549-81083.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013550-16388.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013550-17979.png)
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答案
解析
试题分析:由题可令
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013550-33431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013550-25962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013550-65327.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013550-31651.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013551-15887.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013552-27036.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013543-39175.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013543-15181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013543-76316.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013544-99851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013544-13607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013538-29765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013539-25968.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013539-18483.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013539-63090.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013529-91849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013529-42699.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013530-77301.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013530-99919.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013530-96180.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013530-68222.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013531-19962.png)
(1)求角
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013529-42699.png)
(2)如果
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013531-26338.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013531-51112.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013532-79800.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013517-70971.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105013517-91455.png)
A.[-6,1] |
B.[4,8] |
C.(-∞,1] |
D.[-1,6] |
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