名校
1 . 已知定义域为
的函数
满足:①对
,恒有
;②当
时,
.
(1)求
的值;
(2)求出当
,
时的函数解析式;
(3)求出方程
在
中所有解的和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffe896777dc4f9aebb0e6b11ed3ed37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b8e9bb1e11d02cc2190a6e5ede4293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b96c2c79f7d0a248ed590a0bce7eb8bd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166a53e132781c63d215c6c2cee3d306.png)
(2)求出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538190cf2a2e6f248188ae111a162ee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf910f82c3094b267a3d481d23d829f.png)
(3)求出方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf81798e77ead893922361d5e1d4548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc5cf57d2484a1293cfd296a5ae2da1e.png)
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解题方法
2 . 已知函数
是偶函数,且
,当
时,
,则方程
在区间
上的解的个数是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee97d8c31054a7150199058bc7b45cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce26f6327ca86342dd30d94bace2f7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d59532ea63bcae92e1d78fcf10254740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffbd6d46c75b7454cc1259ed8d818ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f34d425bc28251fedef53606916381bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f554febeba5d86583d2c1c3824e182d1.png)
您最近一年使用:0次
2022-11-11更新
|
647次组卷
|
4卷引用:上海市行知中学2023届高三上学期期中数学试题
名校
解题方法
3 . 已知函数
,若存在
,使得
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13672c59645eb3e6a86fb148aa3b4b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e45e961dd36b8f85703c91f248da3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bacde908aec2c313978fc4309d82bc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-09更新
|
961次组卷
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5卷引用:上海市金山中学2022-2023学年高一上学期期末数学试题
上海市金山中学2022-2023学年高一上学期期末数学试题江苏省泰州市靖江高级中学2022-2023学年高一上学期期中数学试题黑龙江省实验中学2022-2023学年高一上学期期中数学试题湖北省襄阳市第三中学2022-2023学年高一上学期12月月考数学试题(已下线)期末模拟卷(B能力卷)-2022-2023学年高一数学分层训练AB卷(人教B版2019第一册、第二册)
名校
4 . 已知一元二次方程
,其中k、m、n均为实数.
(1)若方程有两个整数根,且k为整数,
,求方程的整数根;
(2)若方程有两个实数根
、
,满足
,且
为最大的负整数,试判断
是否成立?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4d213cdb239e05aac14478887212ed6.png)
(1)若方程有两个整数根,且k为整数,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a5bfa4da0ebe2eafaa2dfb21a8c792.png)
(2)若方程有两个实数根
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057c1fac523f1e809e273823b50f3a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15befbdad977723a86194979c675ee5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d633226b3dbcdcd30c4f2dcb9e29dbf.png)
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解题方法
5 . 关于函数
,给出以下四个命题:①当
时,
严格单调递减且没有最值;②方程
一定有解;③如果方程
有解,则解的个数一定是偶数;④
是偶函数且有最小值,其中真命题是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4281314a55527d8ba0b5c4f4054a5e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92a8dd18dfe40aaf4daa9fb960db970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb101c5df08aa35ae24a6416840b199b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
A.②③ | B.②④ | C.①③ | D.③④ |
您最近一年使用:0次
2022-09-30更新
|
583次组卷
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4卷引用:上海市同济大学第一附属中学2023届高三上学期第二次测试数学试题
名校
6 . 对于函数
,若函数
是严格增函数,则称函数
具有性质
.
(1)若
,求
的解析式,并判断
是否具有性质
;
(2)判断命题“严格减函数不具有性质
”是否真命题,并说明理由;
(3)若函数
具有性质
,求实数
的取值范围,并讨论此时函数
在区间
上零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f5f3b61c612aebb6ed926ff452d6d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f8c3e86ad86ba4bc66abfcec0f204a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)判断命题“严格减函数不具有性质
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae5ec175aaf43c138be8b6ac4a84e5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b3f279c98aaf28e3ffcfc3ecd8914a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55cfcbb5c5950e18a8452b38bb17036.png)
您最近一年使用:0次
2022-09-27更新
|
588次组卷
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7卷引用:上海市实验学校2023届高三上学期9月月考数学试题
名校
解题方法
7 . 设
,
,
,
是四个互不相等的实数,且满足
,已知函数
,则函数
的零点个数( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7187aa6de8bb78a27e3587e585080af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78f7fe4b1c229630137e1644f308e1e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.最多一个 | B.最多两个 | C.一个或无数个 | D.0个、一个或无数个都有可能 |
您最近一年使用:0次
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8 . 某同学用“五点法”画函数
在某一周期内的图像时,列表并填入的部分数据如下表:
(1)请填写上表的空格处,并画出函数
图像
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/7baa7d96-38cb-4ec3-b0c9-98f291f94027.png?resizew=183)
(2)写出函数
的解析式,将函数
的图像向右平移
个单位,再所得图像上各点的横坐标缩小为原来的
,纵坐标不变,得到函数
的图像,求
的解析式.
(3)在(2)的条件下,若
在
上恰有奇数个零点,求实数a与零点个数n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63609491e4b1253d7991b8664bb61fb.png)
x | ![]() | ![]() | ![]() | ||
![]() | 0 | ![]() | ![]() | ![]() | ![]() |
![]() | 0 | 1 | 0 | -1 | 0 |
![]() | 0 | ![]() | 0 | 0 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/7baa7d96-38cb-4ec3-b0c9-98f291f94027.png?resizew=183)
(2)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c04463571cdb7c69c44b60f948ba831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f56f8ab9195ad96fcbea8d18b785bbc.png)
您最近一年使用:0次
9 . 已知函数
对任意的实数x满足
且
,则称
为M函数.
(1)判断
是否为M函数,并说明理由;
(2)函数
为M函数,且当
时,
,求
在
时的解析式;
(3)函数
为M函数,且当
时,
,则当
,关于x的方程
(a为常数)有解,记该方程所有解的和为S,求S.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a969f5efc42bfc72e7a9a5d1d368ff8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63841ef891df49e3ebdb8c897841489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7704476e6235f5ca29ac41305766681.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b807fb3d0f5fa98a1e722af0aa9da615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257a261fa504b3c775cda8f89014165a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ee53aeba4778d601a995bbe4a5e213.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b807fb3d0f5fa98a1e722af0aa9da615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257a261fa504b3c775cda8f89014165a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89d1f368e89453cbc0806b0debcb4ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc231c399eaba3ac0c3593ca0a362f1d.png)
您最近一年使用:0次
2022-04-21更新
|
444次组卷
|
2卷引用:上海南汇中学2021-2022学年高一下学期期中数学试题
名校
10 . 设函数
,当函数的零点个数达到最大值时,实数k的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433cd1a5d199d4955d533d057f6b63c8.png)
您最近一年使用:0次
2021-11-26更新
|
1149次组卷
|
6卷引用:上海高一上学期期中【压轴42题专练】(1)
(已下线)上海高一上学期期中【压轴42题专练】(1)上海市第二中学2023届高三上学期期中数学试题上海市复旦大学附属中学2021-2022学年高一上学期期中数学试题(已下线)专题8.3 函数应用 章末检测3(难)-【满分计划】2021-2022学年高一数学阶段性复习测试卷(苏教版2019必修第一册)福建省龙岩第一中学2021-2022学年高一上学期第二次月考数学试题第8章 函数应用(章末测试提高卷)-2021-2022学年高一数学同步单元测试定心卷(苏教版2019必修第一册)