题目
题型:不详难度:来源:
已知在
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054536-87205.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054536-58573.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054537-52826.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054537-35495.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054537-58527.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054537-29570.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054537-59809.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054538-75623.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054538-46222.gif)
(Ⅰ)求角
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054538-39253.gif)
(Ⅱ)现给出三个条件:①
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054538-99311.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054538-72084.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054539-27188.gif)
试从中选出两个可以确定
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054536-87205.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054536-87205.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054539-83834.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054539-50584.jpg)
解析
核心考点
试题【(本小题满分12分)已知在中,角,,的对边的边长分别为,,,且.(Ⅰ)求角的大小;(Ⅱ)现给出三个条件:①;②;③.试从中选出两个可以确定的条件,写出你的选择,】;主要考察你对解三角形应用等知识点的理解。[详细]
举一反三
已知△ABC中,角A,B,C对边分别是a,b,c,且tanB=
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054532-62618.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054532-24487.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054532-61032.gif)
(1)求tanB的值;
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054532-91847.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054525-59716.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054525-24690.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054526-33679.gif)
(I )求角
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054526-73185.gif)
(II)当
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054526-71584.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054526-75521.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054514-95287.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054514-10643.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054514-41715.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054514-72010.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054514-22150.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054515-31513.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054515-21374.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054515-48934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054514-95287.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054515-50832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054515-77216.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054516-34985.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054516-83815.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054516-64531.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054516-51398.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054508-95410.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054508-77899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054508-43799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054508-95410.png)
A.有一个角为![]() | B.有一个角为![]() |
C.正三角形 | D.以上都不正确 |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054504-76099.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054504-54825.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054504-83872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054505-85615.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020054504-54825.gif)
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