1 . 给出下列四个命题:
①函数
在区间
上存在零点;
②若
,则函数
在
处取得极值;
③若“
或
或
”是假命题,则
;
④函数
的图象与函数
的图象关于
轴对称;
其中正确命题的是_______ .
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e740c343e9753db2d1234c572b86cac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93c13c9d1a1f85ab7a9b044c669bf53.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1260c6fa15a4d739a41c5de1533e9e5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
③若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2acf5271208a96415ffdc85cd04447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e512520573d2606cb6b3258750356087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cd4e5d7e63d3862675cf9b1d4175cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c032f402a4673407ebb0ead150bfd8b.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26efb9f32f6cb608753f9189c6b48644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c67f5cfce32b3ed37987a4baa430062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
其中正确命题的是
您最近一年使用:0次
名校
解题方法
2 . 对于函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/791956b918f2b45654ff4422a3f50d80.png)
(1)
是
的单调递减区间;
(2)
是
的极小值,
是
的极大值;
(3)
有最大值,没有最小值;
(4)
没有最大值,也没有最小值.
其中判断正确的是________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/791956b918f2b45654ff4422a3f50d80.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985684dcdf66e0b14bc537977611aa62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fe45ecd5d507adc2e7ffc1b1755856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb71ad742b421a7ba62d8c1923d33358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
其中判断正确的是
您最近一年使用:0次
2020-05-19更新
|
634次组卷
|
4卷引用:安徽省宣城市郎溪中学2020-2021学年高二下学期第一次月考理科数学试题
名校
3 . 函数
.则”函数
既有极大值又有极小值”的充要条件为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bbb0d8cd1ceea3f0413417bd57439b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2019-10-13更新
|
507次组卷
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2卷引用:安徽省合肥市第十一中学2020-2021学年高二下学期第一次月考理科数学试题
4 . 对于函数
(
)有以下说法:
①
是
的极值点;②当
时,
在
上是减函数;③
的图象与
处的切线必相交于另一点;④若
且
,则
有最小值是
.
其中说法正确的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2af80ec7d3582c369e02c6b4473ede9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ff4a1f5d3ad9d7668fe555e70b774c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c27c0ffda8bb00b67f6d279eb44b26a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
其中说法正确的序号是
您最近一年使用:0次
2017-05-03更新
|
529次组卷
|
5卷引用:安徽省亳州市涡阳县第九中学2019-2020学年高二下学期7月月考数学(文)试题