已知
为定义域R上的奇函数,且当
时,
.
(1)求
的值以及
的解析式;
(2)用函数单调性定义证明:
在
上为增函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2bf3d00d7c9cbfc86ea0686834b42df.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)用函数单调性定义证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
更新时间:2021-12-01 16:35:53
|
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解答题-证明题
|
适中
(0.65)
名校
【推荐1】已知函数
,
.
(1)用定义证明函数
在
上为增函数;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6274a35c06ab2fce01792ba30781ddf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d4a4d94615e427e4e78061000d5e9d.png)
(1)用定义证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b61bb7cb94b4d06f0090df1e365667.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0473b1b0c47d4304e78eb737244f2e.png)
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解答题
|
适中
(0.65)
解题方法
【推荐2】已知定义域为
的奇函数
.
(1)求
的值;
(2)判断
的单调性,并用单调性的定义加以证明;
(3)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce35470cbf92e2ce0b961a823b53545.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2595bf253019edfb6d15ee3b61583a1f.png)
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
为奇函数
(1)求
的值;
(2)用定义证明:
在
上的单调递增;
(3)若
有一个实根,求实数k的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6be8e5084e4c7fa6889bc660177307.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)用定义证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d878665465442007c15d2e78a9206fd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce90064385c4633056784c1ae375a2d5.png)
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解答题-作图题
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适中
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【推荐2】设
是定义在
上的偶函数,当
时,
;当
时,
,
(1)在平面直角坐标系中直接画出函数
在
上的草图;
(2)当
时,求满足方程
的
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(3)求
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a256c187e1c577afddcd41a75ebd351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/205baf000a2c7330bcea3cabee555528.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c6cf9152e0d02b83eb22b01722d29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b09e7b61fb7208e4a219ba045725124.png)
(1)在平面直角坐标系中直接画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda5a58d86e02912baf76ad9f5b8e4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626489c3a7b1ad876d22d2504f347a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a892d0491a2bba2851899986ef332a.png)
![](https://img.xkw.com/dksih/QBM/2018/5/15/1945764516085760/2005406121435136/STEM/0608f8638e924ad1855be0c38a59bf32.png?resizew=257)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐3】已知
,其中
为奇函数,
为偶函数.
(1)求
与
的解析式;
(2)判断函数
在其定义域上的单调性(不需证明);
(3)若不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefc6cf085a1ef5a957907b1cd2ef9e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1a01f9f92d678ba8d72b17eb56be19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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【推荐1】已知幂函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048a6ed5146e6f20bcc4ffc289244a83.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fef5f357f94e1e162cc47a99f9ab1e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a344e2882b1918e7ae3955af5fd93a6.png)
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适中
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【推荐2】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc30165c18de623d0a3efb961e606d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc30165c18de623d0a3efb961e606d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce001d2b88fc6a883fbf3a5f6f44aa91.png)
您最近一年使用:0次