解题方法
1 . 在
中,角
,
,
所对的边分别为
,
,
,且
.
(Ⅰ)求
的值;
(Ⅱ)若
为锐角三角形,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d90d5082d28d2bbb05cd8515bf29afd.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39344ad1a4a45a1023de6b5bdda76546.png)
您最近一年使用:0次
2020-05-23更新
|
397次组卷
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2卷引用:吉林省洮南市第一中学2020-2021学年高三上学期第三次月考数学试题(理)
14-15高一上·江西鹰潭·期末
名校
解题方法
2 . .函数
的部分图象如图所示,设
是图象最高点,
是图象与
轴的交点,记
,则
的值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/78450470-3693-4c0d-9501-d627cd403da3.png?resizew=143)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6718e56facc07d9cc9a9ddd431cfb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd319ee6fd036660b982f251f5d975b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a080cab44a7d3605430d67b207f9be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/78450470-3693-4c0d-9501-d627cd403da3.png?resizew=143)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-10-07更新
|
298次组卷
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