名校
解题方法
1 . 已知函数
的定义域为
,对任意
,有
.
(1)验证函数
是否满足这些条件;
(2)判断函数
的奇偶性并证明;
(3)若
,
,且
,
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c75a15990fdcf1de0a9ac9f475e3c92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ce23d4f9f61a8b1f99d11f4cd2c1d6.png)
(1)验证函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae15b037abd9cf52ebc598c3ead7621.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0821b5d4c5d01731d3458b97f1f912cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb4399904491717d832081af9ecc1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55c9f1a79c0594ee6ade90d9718aeaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af4b5d261044c6f58deba8de7c0e1e35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f484115a9df1b6060d6b14df85c6f38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35770a47ffcba6bf1d94eceabb416d96.png)
您最近一年使用:0次
名校
2 . 已知函数
在
上有定义,
,当且仅当
时,
,且对于任意
都有
,
试证明:①
是奇函数;②
在
上单调递减.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4317a375343e544ab49a4dfa2fda3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64161914262e0627ab1eddd97782439f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843b4c645de56270f5ea5285a8d107bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a1b1fdcdde97a8c9e9339b2f33c5d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc85031b28fff27fb23ff6df1348937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca60fe1c7763c15c2f31e8ddfeec2de.png)
试证明:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4317a375343e544ab49a4dfa2fda3b.png)
您最近一年使用:0次
11-12高三上·湖北黄冈·阶段练习
3 . 定义在R上的增函数
对任意![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
R都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321e87439a817b891f9ad12956691646.png)
(1)求
;
(2) 证明:
为奇函数
(3)若
对任意
恒成立,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321e87439a817b891f9ad12956691646.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
(2) 证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5d6d457deed9544082b7e370e85ee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次