名校
解题方法
1 . 已知
,若幂函数
为偶函数,且在
上递减,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b7f0ed25297658dda78712278c7d9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f98703a94efdf092738b9b9cc431b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
您最近一年使用:0次
名校
2 . 已知函数
,
,
为常数.
(1)当
时,判断函数
的奇偶性,并说明理由;
(2)当
时,设函数
,判断函数
在区间
的单调性,并利用函数单调性的定义证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b75c5dda6a1999ff2a7cda5816bda751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367e788c32187ae2cc97aaa24da1d40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bdde4a91de555178ca863083a9a153a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852d4c270210e2d5948441cad7b1675c.png)
您最近一年使用:0次