名校
解题方法
1 . 函数
,关于函数
的零点情况有下列说法:
①当
取某些值时,无零点; ②当
取某些值时,恰有1个零点;
③当
取某些值时,恰有2个不同的零点; ④当
取某些值时,恰有3个不同的零点.
则正确说法的全部序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24bd5843cbfaff1885592a83275ad7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2853174cf50c71d58b7d57d7048088.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
则正确说法的全部序号为
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|
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2卷引用:北京市第一六六中学2023-2024学年高一上学期数学期末模拟试卷
2 . 已知函数
.给出下列四个结论:①任意
,函数
的最大值与最小值的差为2;②存在
,使得对任意
,
;③当
时,对任意非零实数
,
;④当
时,存在
,
,使得对任意
,都有
.其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2836dcd2ee0cd962fb23e88232dca43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20bfbf8c37bb9b344a044fa163f997cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c2ffe03ee0d9c0648d2423cd32630b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c8bbc6a9f7fbf3df7166dfbe5979b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07ad90ca228230b03f12eb48ee0c1d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf910f82c3094b267a3d481d23d829f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d01b38d7a186768dcdf433584ff9c1.png)
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解题方法
3 . 已知定义在R上的函数
满足:
①
;
②
;
③当
时,
则函数
在区间
上的零点个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a54476caa038b510ab33cdea4c4900.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b55854b9fd7c3b5c87f14ce191daaa2.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade5c3efd79d8cfef08a5f382a45b06c.png)
则函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c313a38d1f8545954d3ec35a6c818f4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c702a3b44574048f0d4ed8970e73524.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
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|
434次组卷
|
2卷引用:【北京专用】专题13(一轮复习)函数概念与基本初等函数-高二上学期名校期末好题汇编
4 . 一般地,设函数
的定义域为A,区间
,如果对任意的
,
,当
时,都有
,则称
在区间I上是“
函数”下列函数中是区间
上是“
函数”的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56e6091a417635edb761e838b96128b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243a45670e2b2fe44496d3244ed5a68d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d1b979659b047fd677c7c01aaf1002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18cef2bb86d4c9937b7e80761d10986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8559db5cec89fb0ed29e8be8fdb0b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8ec0ccdb6db6fbaeb1172e281ec22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8559db5cec89fb0ed29e8be8fdb0b1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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|
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3卷引用:北京市中国人民大学附属中学2023-2024学年高一下学期期中练习数学试题变式题21-25
(已下线)北京市中国人民大学附属中学2023-2024学年高一下学期期中练习数学试题变式题21-25北京市首都师范大学附属中学2022-2023学年高一下学期3月月考数学试题江西师范大学附属中学2022-2023学年高一下学期期中考试数学试题