题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032634-25320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-57002.png)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-53057.png)
(Ⅱ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-44736.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-17930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-16917.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032636-23438.png)
解析
试题分析:(Ⅰ)在
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032634-25320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032636-19366.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032636-79200.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032636-75268.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-44736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032637-90650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032637-57635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032637-79636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032637-84565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032638-75732.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032637-57635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032637-79636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032638-66140.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-44736.png)
试题解析:(Ⅰ)易得
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-17930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-16917.png)
(Ⅱ)在
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032634-25320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032638-66140.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032638-69072.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032638-75689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032635-44736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032638-77158.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032639-23064.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032629-28411.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032630-71023.png)
A.5或3 | B.5 | C.3 | D.5或6 |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032622-11240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032623-16405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032623-89425.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032623-72222.png)
(I)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032623-67045.png)
(II)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032624-86412.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032622-11240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032607-94976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032608-80800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032608-33602.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032608-78756.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032608-48349.png)
(2)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032608-88716.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032609-54016.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032609-24801.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032609-52605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032609-15741.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032609-92764.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032608-78756.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032610-79332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032609-52605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032610-12635.png)
(Ⅰ)求B;
(Ⅱ)若sinAsinC=
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032555-26929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032547-95186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032548-38330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032548-31264.png)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032548-75905.png)
(Ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032548-96570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020032547-95186.png)
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