已知
是定义在
上的奇函数,且
.
(1)求函数
的解析式;
(2)若
,试用单调性的定义证明函数
在
上单调递减.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5301d240a82b502e2e49b79757d217f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e817f37f5a814e856ebc4a16d676ce.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea85f27794add7b5f4e9368153a304c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
更新时间:2023-02-21 22:58:55
|
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知指数函数
满足:
,定义域为
上的函数
是奇函数.
(Ⅰ)求
与
的解析式;
(Ⅱ)判断
在
上的单调性并用单调性定义证明.
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330279034880/1572330284941312/STEM/3485c80f456d4f6b80b9f86eac97ca61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691e94a9475cb22a6e0267b046790d46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330279034880/1572330284941312/STEM/cab3bb82c4354132af0e2e01643319a4.png)
(Ⅰ)求
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330279034880/1572330284941312/STEM/3485c80f456d4f6b80b9f86eac97ca61.png)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330279034880/1572330284941312/STEM/6183b36f793a4c55aa84bf45a9f7614e.png)
(Ⅱ)判断
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330279034880/1572330284941312/STEM/6183b36f793a4c55aa84bf45a9f7614e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】已知函数
为定义在
上的奇函数,且
.
(1)求
、
的值;
(2)证明:函数
在区间
单调递增;
(3)当
时,函数
在区间
上的值域为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43bbebbda4bd0df064ee854f175776fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c55c267516406fd75a291608808cfca.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7752d97558795e1904cdb31f60865ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ec9d0f2e9d84337d0a5b7f90b9d184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893ac254ab911163c4a0d22bba0f1ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知函数
对任意的
都有
成立,当
时,
.
(1)求函数
的解析式;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48dc6d0827a159050e3fa55164f258b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36761d980b7b57c4b1840740529b1e32.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5093a459077bd08e9b9afd725bf93035.png)
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2】定义在R上的奇函数
满足
.
(1)求
;
(2)当
时,
,求
在
上的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e298fe246eef819dd9b1edabe3bb9cb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79755b547b90a7f9e9a7c6a3961eb4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
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1】已知函数
(
且
)是定义在
上的奇函数.
(1)求实数
的值及函数
的值域;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77947d7d15e6bb53007affb7213ba77b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3626596f5a915d5d3b9ec870a24ca029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2】已知函数
为偶函数.
(1)求实数
的值;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c90e350fcfc5b96546bb05bfc77f40f.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c34e21a4282f6f689daee30088f042.png)
您最近一年使用:0次