名校
1 . 已知定义域为
的函数
恒满足
,且
在
内单调递减,写出一个满足条件的函数解析式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6269ac577467bf64c85662b4355d791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
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2 . 已知函数
.
(1)求函数
的单调递减区间;
(2)
中,角
,
,
所对的边分别为
,
,
,且
,
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dccfab5c2096a97ea0f66a32d56e189d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78507833355cf7a75043a90c29035710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解题方法
3 . 已知函数
的部分图像如图所示,则下列关于函数
的说法中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/5dfbf804-cad4-4348-abb6-43a40f84ef0f.png?resizew=181)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8624d648ceb7994931506e22b208935e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/5dfbf804-cad4-4348-abb6-43a40f84ef0f.png?resizew=181)
A.函数![]() ![]() | B.函数![]() ![]() ![]() |
C.函数![]() | D.函数![]() ![]() |
您最近一年使用:0次
2021-08-14更新
|
456次组卷
|
2卷引用:湖北省武汉市部分重点中学(省实验中学等)2020-2021学年高一下学期期中联考数学试题