1 . 若函数
在定义域内满足:(1)对于任意不相等的
,有
;(2)存在正数
,使得
,则称函数
为“单通道函数”,给出以下4个函数:
①
,
;
②
,
;
③
;
④
,
其中,“单通道函数”有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f62475260dcabad269bf26c37ba457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3bf4a061df1b809e76b7b958542d094.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad217af460e48e6dbf0f282939b22558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e10dce73bdc1d522ae7cb34805ed3d8.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c3e44613a932b629c65367699bd7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db91cb237804b10e7dc67044abfc3ae.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472818692e4c93ad7d8abc252d4d1837.png)
其中,“单通道函数”有( )
A.①③④ | B.①②④ | C.①③ | D.②③ |
您最近一年使用:0次
2016-12-04更新
|
890次组卷
|
2卷引用:2016届宁夏银川市二中等校高三下第一次大联考理科数学试卷
2 . 对定义在区间
上的函数
,若存在开区间
和常数
,使得对任意的
都有
,且对任意的
都有
恒成立,则称函数
为区间
上的“
型”函数,给出下列函数:①
;②
;③
;④
.其中在定义域上是“
型”函数的为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7079ff7f81f9485ea43802119da29421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b7e150af2052a1664cde963273d905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f1207b12d35191a843519cd7d1771f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c0354c1d5230a3ac4e2bd58bb1c8c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8043754ae1e4771c256face2748e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c44d53d8e548d01ac44185d6a057f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6201963fcdd54887f2af50518bd908a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886872b35c846093733791cddd655e71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d19ee2c72a30bf791981c5ea788eb72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
A.① | B.①② | C.②③ | D.③④ |
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3 . 对于实数
定义运算“
”:
,设
,且关于
的方程
恰有三个互不相等的实数根
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9116e77c6ad4b1dbdbe1870c14c8b48e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a98361f306294dbb9e9686a36c341a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3cc88730f999ae5094e6270ed6b09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc231c399eaba3ac0c3593ca0a362f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafaeedddee618f5e86a5f2efd15b2cd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 若
表示
的区间长度,函数
的值域区间长度为
,则实数
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1163c658debbc7058e1e5d6d121da8e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e50612f632312fe5ddacb2d930fad69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c270acc77ab40886f14f926e5a24079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895c808e9cc01cf625fa2e573bc1864b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.1 | B.2 | C.![]() | D.4 |
您最近一年使用:0次
5 . 已知集合M={
},若对于任意
,存在
,使得
成立,则称集合M是“垂直对点集”.给出下列四个集合:
①M={
}; ②M={
};
③M={
}; ④M={
}.
其中是“垂直对点集”的序号是
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572443819499520/1572443825135616/STEM/06160a0bb37a46bab2046e1952a420ab.png)
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572443819499520/1572443825135616/STEM/323aa6037d4349649eda6f02421bbf86.png)
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572443819499520/1572443825135616/STEM/1acf673990a741d8a2f7169b94e75bef.png)
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572443819499520/1572443825135616/STEM/9f6b645ab382441aa6755b49e7192423.png)
①M={
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572443819499520/1572443825135616/STEM/7b1e7f2bbfd948aea4f5aa857d2bf458.png)
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572443819499520/1572443825135616/STEM/aec6de45dacb4efeb4090093e6a779d4.png)
③M={
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572443819499520/1572443825135616/STEM/6554ce49324f48eeb3ef2e75da5f73c6.png)
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572443819499520/1572443825135616/STEM/8eac641661c84b0491899e58f6f1f216.png)
其中是“垂直对点集”的序号是
A.①② | B.②③ | C.①④ | D.②④ |
您最近一年使用:0次
名校
解题方法
6 . 在直角坐标系中, 如果两点
,
在函数
的图象上,那么称
为函数
的一组关于原点的中心对称点(
与
看作一组),函数
关于原点的中心对称点的组数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7903097d9663549d86e6267da59537a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7355b02d55cf3c356da18fc0a56ef5.png)
![](https://img.xkw.com/dksih/QBM/2016/1/15/1572437380128768/1572437385289728/STEM/791d246827174878bf945a15d132189d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ceca7a5e1ee3db60ca044a35fded13c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ceca7a5e1ee3db60ca044a35fded13c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc99ee2955c9d6f4dbd34337ce6dc5eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d86c83c648816a4f89304a448a0860a.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2016-12-04更新
|
253次组卷
|
2卷引用:2015-2016学年浙江慈溪中学高一7-12班上期中数学卷
7 . 设函数
在
上的最小值为
,最大值为
若存在最小正整数
使得![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/9dd82a738d0a400bba14994985a563ee.png)
对任意
成立,则称函数
为区间
上的“
阶
函数”若函数
为区间
上的“
阶
函数”,则
的值为
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/e30d0c1c12fd4e53b825cd8cc592cdad.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/0e23f2f4c0414a32821f07fc03dc2e89.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/20b8d59173e0445e8a0709809ebe6936.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/46b1dd53066f482bb42a05a80679ae80.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/abb52c8fd1844e62a039e69d237d85f8.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/9dd82a738d0a400bba14994985a563ee.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/6e23838d1f6342dda62f0b47cd114cdd.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/fe6c34ea931b4e4f96e0b0814ba32453.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/e30d0c1c12fd4e53b825cd8cc592cdad.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/57c269aac9504c52a42eb456247a26cd.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/c1fdd15485664ea89c7fa5c33f9d0602.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/4ae6eaa7c0ed44abac4292a4ed39a6b0.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/5b2924722d5b451889f474afac1e3551.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/089bb70d101944f086da290f25a23608.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/c1fdd15485664ea89c7fa5c33f9d0602.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/4ae6eaa7c0ed44abac4292a4ed39a6b0.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792632832/STEM/c1fdd15485664ea89c7fa5c33f9d0602.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次
9-10高三·北京·开学考试
名校
8 . 给出定义:若
(其中
为整数),则
叫做离实数
最近的整数,记作
.在此基础上给出下列关于函数
的四个命题:
①
;②
;③
;④
的定义域是R,值域是
;则其中真命题的序号是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227cc876e235c389ca10913649859f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6895dcef3c28ddf4345d1c0c63f1ccb.png)
![](https://img.xkw.com/dksih/QBM/2010/9/25/1569838980784128/1569838985986048/STEM/a7bcd4ba8d814d85b3abff3a579bba09.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0787dc0c0518712ac8fe7cd5d45afe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051ea27b2f30b8bc8dd064adc1695404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4545792945e676eb084da45f32aafab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0608e403e0bf6b7170fd1565593999e.png)
A.①② | B.①③ | C.②④ | D.③④ |
您最近一年使用:0次
2016-11-30更新
|
779次组卷
|
10卷引用:2011届北京市高三起点考试理科数学卷
(已下线)2011届北京市高三起点考试理科数学卷(已下线)2011届河南省普通高中毕业班高三高考适应性考试数学理卷(已下线)2011-2012学年辽宁省开原高中高二下学期期中考试文科数学试卷2016届青海省平安一中高三4月月考理科数学试卷2016届青海省平安一中高三4月月考文科数学试卷2017届甘肃省肃南裕固族自治县第一中学高三上学期期末考试数学(理)试卷12017届甘肃省肃南裕固族自治县第一中学高三上学期期末考试数学(理)试卷2(已下线)2019年一轮复习讲练测【新课标版理】专题2.2 函数的定义域、值域式(练)(已下线)2019年一轮复习讲练测【新课标版文】专题2.2 函数的定义域、值域式(练)江苏省无锡市宜兴中学2020-2021学年高二上学期强基培训数学试题
真题
名校
9 . 设集合
,
都是
的含两个元素的子集,且满足:对任意的
,
(i≠
,
),都有
(
表示两个数
中的较小者),则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a743f150dea180538b75839db2912b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62fde8489652e3b26eb7968f2ed7d635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea1f21074c53a91f64d4fba48b58c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89d2e55c8531726078e1cec367de0a6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7600d2cfbdc6146db96cc545706004f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52f3781fa4f29f593f5f3fb6c3217d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/debd2e05e1e09289f32be3d5920c6eb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2715ef602b98b755c1a3feea41770c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edac77829e7aec29f8980f577959098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.10 | B.11 | C.12 | D.13 |
您最近一年使用:0次
2019-01-30更新
|
1214次组卷
|
9卷引用:2007年普通高等学校招生全国统一考试文科数学卷(湖南)
2007年普通高等学校招生全国统一考试文科数学卷(湖南)2007年普通高等学校招生考试数学(理)试题(湖南卷)2007年普通高等学校招生考试数学(文)试题(湖南卷)(已下线)2011届广东省高三高考全真模拟试卷数学文卷二湖南省长郡中学2019-2020学年高一上学期模块检测数学试题(已下线)专题02+集合初步(2)集合的运算-2020-2021学年新教材高一数学秋季辅导讲义(沪教版2020)(已下线)1.2 子集、全集、补集-2021-2022学年高一数学上册同步培优训练系列(苏教版2019)浙江省温州市瑞安中学2020-2021学年高一上学期10月月考数学试题(已下线)知识点 集合的基本运算 易错点2 背景理解有误
解题方法
10 . 已知函数
设
,
,若函数
有四个零点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9487f01655f865d14b1a1931fbbe6854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63be27739a49f0bae6bc01c6f68bf714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa096f080753521ee17eefeec2b46550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
453次组卷
|
2卷引用:2016届湖北省龙泉中学等高三9月联考理科数学试卷