1 . 已知
,若
,
且
,使得
,则满足条件的
的取值个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54700061d9f312959c7159c268dede44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59d6379823d4b8dd9c0fcf1aced8704d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8313a5155ac173b53b81e55078ce3e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a7e90a79fb8ce496fc5c9185ccce47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.5 | B.4 | C.3 | D.2 |
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2019-04-07更新
|
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2卷引用:【校级联考】河南省名校联考2019届高三联考(四)数学(理)试题
2 . 设函数
和函数
,若对任意
都有
使得
,则实数a的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55793bff02d68fd5aae263e62fb38a47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51105e66ee181df23eb1b2dce226b82f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5ebb67448a900028beac82fca0df71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ac74cecb72be768401b418f4b3aa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56e1b9c12f03010e43f361f71cc2abba.png)
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2019-04-07更新
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3卷引用:河南省南阳市2019-2020学年高一上学期期中数学试题
名校
3 . 已知函数
,
,其中
.若
,使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915b3d29d0c7dd83c188e3ce31f52fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be22faef62e7a035eb39a2e020c880e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6fba77f7baf9510765788eb05ce80f.png)
成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a18ca67c2770b98f36dbfd802595a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c398e4b360d5884638774d00520181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0c7454200b4056bb0777d8a46faa7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915b3d29d0c7dd83c188e3ce31f52fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be22faef62e7a035eb39a2e020c880e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6fba77f7baf9510765788eb05ce80f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ec8f79b42db17aff3a207f371156ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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2019-04-04更新
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733次组卷
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4卷引用:河南省焦作市2019-2020学年高一上学期期中数学试题
名校
4 . 已知函数f(x)=
,若∃x1,x2∈R,且x1≠x2,使得f(x1)=f(x2),则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee552e9d2e7653115b9a63d8578ddc4.png)
A.[2,3]∪(﹣∞,﹣5] | B.(﹣∞,2)∪(3,5) |
C.[2,3] | D.[5,+∞) |
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2019-03-25更新
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3卷引用:【市级联考】河南省焦作市2019届高三第三次模拟考试数学(理科)试题
5 . 设函数
,若
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e367d934bc5de44e8ef7bcd3a2aa1bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb8991be81761ebaad4957557fa35e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e57c7a80d6396ab55bfe56f1fb17b38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-03-13更新
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4卷引用:河南省顶级名校2019-2020学年高三尖子生11月诊断性检测数学(理)试卷
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6 . 已知
、
,定义运算“
”:
,设函数
,
. 若函数
的图象与
轴恰有两个公共点,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/174aec6857cf549e2fa3117d75617468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf4011b0d7fe720e8da9b74106d2633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae224c13557e12662acca56acaf8dd29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7卷引用:河南省郑州市第四十七高级中学2021-2022学年高一上学期第二次月考数学试题
7 . 定义新运算⊗:当m≥n时,m⊗n=m;当m<n时,m⊗n=n.设函数f(x)=[(2x⊗2)﹣(1⊗log2x)]•2x,则f(x)在(0,2)上值域为______ .
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5卷引用:河南省南阳六校2023届高三上学期第一次联考理科数学试卷
河南省南阳六校2023届高三上学期第一次联考理科数学试卷【市级联考】吉林省白山市2018-2019学年高一上学期期末联考数学试题人教B版(2019) 必修第二册 过关斩将 第四章 4.1~4.5 综合拔高练第四章 指数函数与对数函数 4.1~4.4 综合拔高练(已下线)4.2 指数函数-2021-2022学年高一数学尖子生同步培优题典(人教A版2019必修第一册)
名校
8 . 已知函数
的定义域是
,
与
的图象关于点
成中心对称,若
在
上有意义,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90088386f784d47c51a14f87dce0c8e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4e318eba446aef74e47ff27fda7bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a139b98e45b4664ef5a2e901fd283e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db45cd58b227c613b565de08181cc9a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b5ce472eb01249a94a85d4d07f511f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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|
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3卷引用:河南省洛阳市宜阳第一高级中学2022-2023学年高一上学期第四次月考数学试题
9 . 已知函数f(x)=
.
(1)若f(2)=a,求a的值;
(2)当a=2时,若对任意互不相等的实数x1,x2∈(m,m+4),都有
>0成立,求实数m的取值范围;
(3)判断函数g(x)=f(x)-x-2a(
<a<0)在R上的零点的个数,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6bb41e1ef73681d9700cd7ab06002d.png)
(1)若f(2)=a,求a的值;
(2)当a=2时,若对任意互不相等的实数x1,x2∈(m,m+4),都有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7baf6eb7b4ec059a0cd0d2c3c33a55.png)
(3)判断函数g(x)=f(x)-x-2a(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5743a3bf50e8146f519a7b4f32a958b5.png)
您最近一年使用:0次
名校
10 . 如图放置的边长为1的正方形
沿
轴滚动,点
恰好经过原点.设顶点
的轨迹方程是
,则对函数
有下列判断:①函数
是偶函数;②对任意的
,都有
;③函数
在区间
上单调递减;④函数
的值域是
;⑤
.其中判断正确的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f91ba0d869011ba04651d2d4c60825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a248e47163191168a1b363937eebd618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06316f84d160de3328ff7b30f216980c.png)
![](https://img.xkw.com/dksih/QBM/2019/1/11/2116574854381568/2117340445360128/STEM/a146dcd0-c4d8-4195-a47e-0100ad6f25f6.png?resizew=207)
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2019-01-12更新
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6卷引用:【市级联考】河南省郑州市2019届高中毕业年级第一次(1月)质量预测数学理试题