已知函数
.
(1)判断
的奇偶性,并证明;
(2)证明:
在区间
上单调递减.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcae958925796c008a8404d500e4f11e.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
更新时间:2022-02-04 17:29:45
|
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解答题-证明题
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较易
(0.85)
解题方法
【推荐1】函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1c1831017fbcc87c03530f0503600b.png)
(1)用定义证明
在
上单调递减;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7086edc300335951def103e1ddc8fd00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1c1831017fbcc87c03530f0503600b.png)
(1)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b85e56104dd18b4a0c78e05face504.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc69229a19e4e12014c28ab997b0c426.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
|
较易
(0.85)
解题方法
【推荐1】已知函数
,其中
为实数,根据
的不同取值,判断函数
的奇偶性,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4212558355c6c38fb21da3a7c49ef9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】已知二次函数
在
处取得最大值,指数函数
.
(1)求
的值;
(2)设函数
,试判断
的奇偶性,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea89fb796dea0e3e7571530eaee85bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecb88dbb5687ae8df93ed9bf07d812b8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f3385693988d3e5ddcd0df6979e9ad9.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f4149b81a7c9a2bdefabad01ca629b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
您最近一年使用:0次