1 . 下列几个命题:①若方程
的两个根异号,则实数
;②函数
是偶函数,但不是奇函数;③函数
在
上是减函数,则实数a的取值范围是
;④ 方程
的根
满足
,则m满足的范围
,其中不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73bc525a2bfdf950afa9d73807b9175e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b394e40fa8dd611854991f7f5a664198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54348af141f4025b4535de3c24509051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6049468a247227dcd9d0b83fe0e0d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47fe863357e026cd960fea54a3ac827d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b491dad59baf9ee49e505020205ce27b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6323f51afa5311ca387242093afd123e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a07724994828bb33cdebbf97979fcc3.png)
A.① | B.② | C.③ | D.④ |
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2020-09-18更新
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4卷引用:辽宁省六校协作体2019-2020学年高一上学期期中数学试题
辽宁省六校协作体2019-2020学年高一上学期期中数学试题辽宁省沈阳市市级重点高中联合体2020-2021学年高一上学期期中数学试题黑龙江省安达市第七中学2019-2020学年高一3月月考数学试题(已下线)专题2.3 二次函数与一元二次方程、不等式(精练)-2021年新高考数学一轮复习学与练
名校
2 . 已知函数
在区间
上是单调函数.
(1)求实数
的所有取值组成的集合
;
(2)试写出
在区间
上的最大值
;
(3)设
,令
,若对任意
,总有
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dfe62bb9beac0720d3c6fa3155207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)试写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1987ecbd076d89da5ef1e2561d79d857.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea8fcf119beecdeda292c6db685ca16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e540d5da966481bd552eb01187bc12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930995172d12e12d8173aec823f1982b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd5eb1e81ec6f44e4cb59ce214b949a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-11-19更新
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2卷引用:辽宁省沈阳市东北育才双语学校2021-2022学年高一上学期期中数学试题
名校
3 . 意大利画家列奥纳多·达·芬奇曾提出:固定项链的两端,使其在重力的作用下自然下垂,项链所形成的曲线是什么?这就是著名的“悬链线问题”,后人给出了悬链线的函数表达式
,其中
为悬链线系数,
称为双曲余弦函数,其函数表达式
,相反地,双曲正弦函数的函数表达式为
.
(1)证明:①
;
②
.
(2)求不等式:
的解集.
(3)已知函数
存在三个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65623d246ccde18e941c9bda7011ef65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ff88c570435584c4df32454224c442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0639494fc8cc7a048c7621f972eae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a59c8dc71935b342d42cb4a54eed27.png)
(1)证明:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec3182982e6dcf905ea35d6b5be5f48.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe43cb3653c29dd797074b27780695a9.png)
(2)求不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf091e70e33483f99554568eb54a10a.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f307ed8ec3f398d3d3e445266396acdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
名校
4 . 已知函数
,关于
的不等式
的解集为
,其中
,
为常数.给出下列四个结论:
①直线
是曲线
的一条切线;
②
;
③当
时,
的取值范围是
;
④要使
取唯一的值,仅当
.
其中,所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe819909452c1edb8e1f0e3f1adc562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce84901e2f29f740265e278be8e34de9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea69fb59dc615852a0d248675788d82e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a27c31d57a84a5928898de139cb40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b5b0840d90d0654e9bcb0f866ff10d.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51969fc1a8030cef11cab59267689e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a50188f84f379b3d0418c54cbade7d7.png)
④要使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acdc6e6a0e6584bea7deb91b0841fa28.png)
其中,所有正确结论的序号是
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5 . 已知函数
,
.
(1)当
时,求不等式
的解集;
(2)若不等式
的解集包含
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e1c2abc2c7ade78e5fdf1de5c3b313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7ba07c8ca023618f762c5f1bb239e2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78368e466f284f6b89abe12f32562d9a.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2卷引用:辽宁省沈阳市第一二〇中学2023-2024学年高一上学期第一次质量监测数学试题
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解题方法
6 . 已知定义在
上的函数
满足以下条件:①
,当
时,
;②对任意实数
恒有
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249a976e88133f3b3733f09137cf5c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3dc7ce7322bdcb87413f7283cb70049.png)
A.![]() |
B.![]() |
C.若![]() ![]() ![]() ![]() |
D.不等式![]() ![]() |
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3卷引用:辽宁省朝阳市建平县第二高级中学2023-2024学年高一下学期4月联考数学试题
解题方法
7 . 已知函数
.
(1)当
时,函数
在
上单调,求
的取值范围;
(2)若
的解集为
,求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a35277c37144276ead40bb74a51481.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4842c7c85e9610baedc948a41107d5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe37dbbbde54a7ff0f7b37fff4b71c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72656c882b2830eeb8053ec18c0088f.png)
您最近一年使用:0次
名校
8 . 下面命题正确的是( )
A.不等式![]() ![]() |
B.不等式![]() ![]() |
C.不等式![]() ![]() ![]() |
D.函数![]() ![]() ![]() |
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4卷引用:辽宁省重点高中沈阳市郊联体2022-2023学年高二下学期期末数学试题
名校
解题方法
9 . 设函数
,函数
.
(1)求
的取值范围;
(2)若对于任意的
,总存在
,使得
,求实数m的取值范围;
(3)若关于
的不等式
在
存在解集,求整数m的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0d7935a0560e92eedc5aedd0308d79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18030d3e90387d42811d7f3ca6dc8a4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(2)若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f035975ebb028ee7314b06b1f81e51d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff565afbddafe8625ef376d7eb3fa649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb8949862b8eb8629408332d7e69908.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988772a71ce570f151d517e804dab48e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c351af3720808f7fdbf80f8bab13e2.png)
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解题方法
10 . 下列说法不正确的是( )
A.不等式![]() ![]() |
B.已知命题![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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|
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2卷引用:辽宁省辽南协作体2023-2024学年高一上学期期中考试数学试题