给定函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe68fb3cddf2129dd5fef87d261a94a.png)
(1)判断
的单调性并证明
(2)在同一坐标系中画出
的图像
(3)任意的
,用
表示
的较小者,记为
,请写出
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe68fb3cddf2129dd5fef87d261a94a.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在同一坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
(3)任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f169611259ea1cc39fd5894d46a4ba81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
更新时间:2023-01-19 10:01:18
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【推荐1】已知函数
,求:
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1c2661d9aa47a76f34d541963dcd6a.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe653ed86488f8dcdf2612ac544fe2aa.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6b92ebbcead7b79fc85064ebe360c9.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eec889900d002d48f897ed6976182e6.png)
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【推荐2】已知函数
.
(1)求
的值;
(2)若
,求
的值;
(3)请在给定的坐标系中画出此函数的图象,并根据图象说出函数的值域及单调减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839c10da174a31d9985270bd77904cfd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4474bd87c00ac3ee99ab366527ded109.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04042cd29185f7f48399495d7df371e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)请在给定的坐标系中画出此函数的图象,并根据图象说出函数的值域及单调减区间.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/26/14cf1978-4842-4a6c-a765-0cd44cebab8f.png?resizew=233)
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解答题
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【推荐1】已知函数
.
(1)证明函数
为偶函数.
(2)用函数的单调性定义证明
在
上为增函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2dec0091ed2c47fa6909127942c4dc.png)
(1)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)用函数的单调性定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
您最近一年使用:0次
解答题-证明题
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【推荐2】已知函数
.
(1)求
;
(2)判断函数
在区间
上的单调性,并用函数单调性的定义证明;
(3)证明
是奇函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db66d6d64d0b653428886ec34cc9798c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d55ef0d1b7ea88d92fd6e1ecebb5f5.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
(3)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解答题-证明题
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解题方法
【推荐3】已知函数
,且
.
(1)求
的解析式,并写出其定义域;
(2)用函数单调性的定义证明:
在
上单调递减.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac7dd9a45324c99c0a6c1870ed250e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4065a9a638fbe79b50e5f56d3df664ff.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)用函数单调性的定义证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d06d31c9a2298b02664a86ddd91b1121.png)
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解答题-作图题
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【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c34696f0e3d6ce9d23a6ca9a786d27.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/f85b2971-c17b-48c8-a6eb-485357ff5533.png?resizew=142)
(1)用分段函数的形式表示该函数;
(2)在上边所给的坐标系中画出该函数的图象;
(3)写出该函数的值域及因变量随自变量变化趋势(不要求证明).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c34696f0e3d6ce9d23a6ca9a786d27.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/f85b2971-c17b-48c8-a6eb-485357ff5533.png?resizew=142)
(1)用分段函数的形式表示该函数;
(2)在上边所给的坐标系中画出该函数的图象;
(3)写出该函数的值域及因变量随自变量变化趋势(不要求证明).
您最近一年使用:0次
【推荐2】已知函数
.
(1)求
的值;
(2)若
,求
的值;
(3)请在给定的坐标系中画出此函数的图象,并根据图象说出函数的值域及单调减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839c10da174a31d9985270bd77904cfd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4474bd87c00ac3ee99ab366527ded109.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04042cd29185f7f48399495d7df371e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)请在给定的坐标系中画出此函数的图象,并根据图象说出函数的值域及单调减区间.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/26/14cf1978-4842-4a6c-a765-0cd44cebab8f.png?resizew=233)
您最近一年使用:0次
解答题-作图题
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较易
(0.85)
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【推荐3】已知函数
.
(1)在直角坐标系中作出函数
的图象;
![](https://img.xkw.com/dksih/QBM/2020/12/15/2614847481323520/2649574599655424/STEM/ff643d62-dc22-4a07-bf3d-a6d4d5f30dee.png?resizew=369)
(2)
,若函数
有三个零点,求实数a的取值范围;
(3)解方程
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95a62ee17b62e0edac438046cdbcf70.png)
(1)在直角坐标系中作出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://img.xkw.com/dksih/QBM/2020/12/15/2614847481323520/2649574599655424/STEM/ff643d62-dc22-4a07-bf3d-a6d4d5f30dee.png?resizew=369)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0384a0466920e5bf00231a5c5bf77969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)解方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4724381345ed23396777a9be9466a78a.png)
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