题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132124-98217.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132124-40889.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132124-49311.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132124-62315.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132125-78573.png)
A.1 | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:由正弦定理,
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132125-86544.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132109-10536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132109-40408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132110-58377.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132110-26455.png)
(1)求角
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132110-52480.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132110-42211.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132109-10536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132111-79202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132111-26690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132036-31512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132036-79165.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132036-80059.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132036-23785.png)
A.两解 | B.一解 | C.无解 | D.无穷多解 |
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132012-75482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132013-28747.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132013-84845.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132013-80452.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019132013-78689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131938-35561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131938-71232.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131938-68804.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131938-55735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131939-23790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131939-33958.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131939-67569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131939-97417.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131938-71232.png)
(2)如果
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131940-41405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131940-47900.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131939-23790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131701-69743.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131702-23324.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131702-14605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131702-49996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019131703-91654.png)
A.4∶3∶2 | B.5∶6∶7 | C.5∶4∶3 | D.6∶5∶4 |
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