题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034150-79371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034150-20117.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034150-46197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034150-21965.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034151-57099.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034151-76436.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034151-35970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034151-44812.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034151-73980.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034152-58305.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034152-10310.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034152-64614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034152-63864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034153-99715.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034153-54446.png)
【考点定位】 余弦定理及诱导公式的应用,属于解斜三角形中容易题。
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034145-11733.png)
(I)求cosA的值,
(II)求c的值
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034139-12587.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034139-64484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034139-69788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034139-72834.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034140-35451.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034140-17089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034133-36847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034134-59490.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034134-39910.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034134-27978.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034134-98564.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034128-16388.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-68618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-39680.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-68618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-39680.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-68618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-83215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-83215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-39680.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-68618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034121-16955.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034121-40133.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-68618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-83215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-83215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-83215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-39680.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034121-16955.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034121-57549.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034121-21534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034121-24490.png)
(1)求索道
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034121-37468.png)
(2)问乙出发后多少分钟后,乙在缆车上与甲的距离最短?
(3)为使两位游客在
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020034120-39680.png)
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