解题方法
1 . 已知函数
的定义域为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d288188c3743cc9636d56d31f00930c2.png)
是奇函数,且
,恒有
,当
时(其中
),
.若
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d288188c3743cc9636d56d31f00930c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81e15b871dd32b2438ef8025bcc42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/801d492de7ae12be2bf576f25c4f1ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee428978759f9850c37131af1d496bb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d522158925da6c1b1c31eceee519cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ead1b309806b0e0257275e41b0ba2e.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() |
D.![]() |
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解题方法
2 . 若函数
的图象关于点
中心对称,则对函数
定义域中的任意
,恒有
.如:函数
的图象关于点
中心对称,则对函数
定义域中的任意
,恒有
.已知定义域为
的函数
,其图象关于点
中心对称,且当
时,
,其中实数
,
为自然对数的底.
(1)计算
的值,并求函数
在
上的解析式;
(2)设函数
,对任意
,总存在
,使得
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/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eab44d6de2c44774024f927a1f8d843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c39c16d3c056a9627afbc9501e3f8b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032506326bc143b23e8244349021d5d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b86e4ff02fb6439ebf4343aeda27caf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f563ea6adb96fd0f165ca794f8375fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c2b7557957ead7f44ac33017a4930a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66e6e682afbd139e4cc53004cd7bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc3eb2b0592ef2352237c35fdb50cd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fdbc84b01676486fd2c997dfda9d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b86e4ff02fb6439ebf4343aeda27caf.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd4cb2b8c64b823aee6f7a159dbf9e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9acccc23b4f204af5c1e82bf4aa4114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c916dbaf4ecf0985a2bd46e674715a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次