名校
1 . 对于函数
现有下列结论:
①任取
,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b27d9aafc2de07ff3506cadf89c420f.png)
②函数
在
上单调递增
③函数
有
个零点
④若关于
的方程
恰有
个不同的实根
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9145e7bebf14b87e0ef3d0309c1c6eb1.png)
其中正确结论的序号为________________ .(写出所有正确命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e88abcc6e4b6381edaba959ee4b3286.png)
①任取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a62b2963a3941525b41bc7a33e2a066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b27d9aafc2de07ff3506cadf89c420f.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd2993f6583edb4693a760f3f276a66.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6647ff4260f63b1d2a0c74c31bb69030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
④若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b647bef81d6e219c508eca1517d9342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9145e7bebf14b87e0ef3d0309c1c6eb1.png)
其中正确结论的序号为
您最近一年使用:0次
2020-04-09更新
|
497次组卷
|
2卷引用:黑龙江省哈尔滨三中2017-2018学年高三上学期期中考试理科数学试题
名校
2 . 下列说法正确的有_________ .
①函数
的一个对称中心为
;
②在
中,
是
的中点,则
;
③在
中,
是
的充要条件;
④定义
,已知
,则
的最大值为
.
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a31235ca9466454aac87b39e79c68af3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9c823118b3b9edb8366d2fac9ec081.png)
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb38058bd90f11d9a2f844d109aeac7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c88ea44116cfbaafcb3701eb8a4cb4.png)
③在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d0b9c0c01b49be6e08a111568f77f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34dd7e54abeeb98b1fb13777c78ca722.png)
④定义
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee372ba3332805dbe5cc0f989fd786e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a00bb5bb1d8c7cbb6164232408bdcec5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
您最近一年使用:0次
2017-12-05更新
|
1877次组卷
|
2卷引用:黑龙江省牡丹江市第一高级中学2018届高三上学期期中考试数学(文)试题
名校
解题方法
3 . 已知函数
,函数
,若存在
,对任意
都有
成立,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13354136f2b11ec400288c910403f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8c84be5e68ec4cc816b01de936d216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9bc8f11fd77a832e2f16e0387523c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a49684ba67f71171321586f1a77ad4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-10-20更新
|
1713次组卷
|
3卷引用:黑龙江省牡丹江市第一高级中学2018届高三10月月考数学(文)试题