已知函数
的定义域为
,且满足:当
时,
,
、
,都有
.
(1)判断函数
的单调性并加以证明;
(2)若当
时,关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d5a0e25aebe1cc182d2247ed344652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6593a700bf3e89107556454666b787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c81b53f8bdd3a06b9753c71b55cd10f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a30d0fed389a86e8a6645ccd6179cef1.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/503a002dd51f5338c4bc0e15fb201c3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d1d82397893fe3e8d7618c4f3c4f74f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2023-12-15 16:57:54
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
是定义在
上的奇函数,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc6da8cf1ccead63fcacc383560e0ba.png)
(1)求函数
的解析式;
(2)判断并用定义法证明函数
在
上的单调性;
(3)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8717af5b57ca8eb3402b17118fec7a04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc6da8cf1ccead63fcacc383560e0ba.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断并用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a669b7345ccfe4cfbe6de2765f1fd74.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知函数
的定义域为
,且对任意的
有
. 当
时,
,
.
(1)求
并证明
的奇偶性;
(2)判断
的单调性并证明;
(3)求
;若
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f25117ea1976f09a33539ec2c92ddae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a779f759e6254986c4bb2a274b68d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.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
|
适中
(0.65)
【推荐3】已知函数
,且
.
(1)求
的值;
(2)判断函数
的奇偶性;
(3)判断
在
上的单调性并加以证明.
![](https://img.xkw.com/dksih/QBM/2016/1/8/1572424759541760/1572424765358080/STEM/c102599672384ad9a5a51f9f4e09c821.png)
![](https://img.xkw.com/dksih/QBM/2016/1/8/1572424759541760/1572424765358080/STEM/f234fb44ec874f579318b54e56ff1c42.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/1/8/1572424759541760/1572424765358080/STEM/ac3f903331dc4e318024eea1b1ccdde8.png)
(2)判断函数
![](https://img.xkw.com/dksih/QBM/2016/1/8/1572424759541760/1572424765358080/STEM/4eefbf430d374939830e44ebfcd0be91.png)
(3)判断
![](https://img.xkw.com/dksih/QBM/2016/1/8/1572424759541760/1572424765358080/STEM/4eefbf430d374939830e44ebfcd0be91.png)
![](https://img.xkw.com/dksih/QBM/2016/1/8/1572424759541760/1572424765358080/STEM/a4bf534cf4da46c08c4678481b28288e.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知函数
,
.
(1)判断函数
的奇偶性,并证明你的结论;
(2)若
对一切实数
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceb85e8e0c2998717346b6e97543c38e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b3c83e9ebea7d75e15fc2f7a7e6320.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1962bab2a0afb7924f489564192cc92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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
|
适中
(0.65)
【推荐2】已知a>0,b>0,且a+b=2;
(1)若ab<
恒成立,求m的取值范围;
(2)若
+
≥|x-1|+|x+2|恒成立,求x的取值范围.
(1)若ab<
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5cdbc7f2768532f7a9af74d6a3b1628.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22035e6877347b621d2d6b47f00ae177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a3b3b2bdc2bbf6f0156555d3f5c886.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】设函数
.
(1)解不等式
;
(2)已知对任意的实数
恒成立,是否存在实数
,使得对任意的
,不等式
恒成立,若存在,求出
的范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030c5018242cec27a32798741e82b8cc.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5fc56b30e0fbdcfea3f40778cdbfd.png)
(2)已知对任意的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8662ccfaff1bc31174856c9794424ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae491f4fbb7c218c0d959477e43f385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df784ed017069b60d030f138927df7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.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2】已知函数
.
(1)证明:函数
在
上严格增函数;
(2)若存在
,使
,则称
为函数
的不动点,已知该函数有且仅有一个不动点,求
的值,并求出不动点
;
(3)若
在
上恒成立,求
取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6882cf5d9ed3905eb47762fd96583747.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25316e8ea43ba5a1d05b75cf42838b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.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
|
适中
(0.65)
【推荐3】已知函数
(x>0)在x = 1处取得极值-3-c,其中a,b,c为常数.
(1)试确定a,b的值;
(2)讨论函数f(x)的单调区间;
(3)若对任意x>0,不等式
恒成立,求c的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a10b99702148d98c84efc8f477886040.png)
(1)试确定a,b的值;
(2)讨论函数f(x)的单调区间;
(3)若对任意x>0,不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb184ccd93dec193328ad7f7e8b06da8.png)
您最近一年使用:0次