1 . 函数
在
上有定义,若对任意
,有
,则称
在
上具有性质
.设
在
上具有性质
,现给出如下命题:
①设
在
上的图象时连续不断的; ②
在
上具有性质
;
③若
在
处取得最大值1,则
,
;
④对任意
,有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46906c4c98fdb88717c138c46822bf70.png)
其中真命题的序号是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d6fe21d6ed78bfc1d2b9cc41a766c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df530675e982983298f1eb7826ae3d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da34ce730f711c09909d53806fe2330a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da34ce730f711c09909d53806fe2330a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb6da917059d222ce74adae88054fbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56dccc5720967ee3edce0174255e8ed8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907e4ba6d5f2eea68442def1911957fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538193a4717d564c01145e82314c2d1a.png)
④对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a164341dd3e78185c87ebad44d678d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46906c4c98fdb88717c138c46822bf70.png)
其中真命题的序号是
A.①② | B.①③ |
C.②④ | D.③④ |
您最近一年使用:0次
解题方法
2 . 若在曲线
(或
)上的两个不同点处的切线重合,则称这条切线为曲线
(或
)的“自公切线”.下列方程:①
;②
;③
;④
对应的曲线中存在“自公切线”的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ba1c45c55da8fb125b91b100479e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ba1c45c55da8fb125b91b100479e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1fa37c4c826b5dcfebe86ab6177906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc3ae50e9979b90d053a66a44983b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e1f039b99e71c3fdfcd61ec2a42dcb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6eb6aa05006b48ce5177410fc6da757.png)
A.①③ | B.①④ |
C.②③ | D.②④ |
您最近一年使用:0次
3 . 定义函数
,若存在常数
,对于任意的
,存在唯一的
,使
,则称函数
在
上的“均值”为
,已知
,则函数
在
上的“均值”为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd06c79ae6fc666bf28fef89a45bad2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37cb15d282a40c780c2b68287e47867e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28e384ba050b238e11f7c74d3002aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e04b8497c6f3b8fe94fee0c80962e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec34a77f49d53446f5d6bc42b5bae06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed2f7ffc621f4cde1fa4ba63bdb1106b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 若点
在角
的终边上,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10be12fe42332ab8da8853faba491c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-02-08更新
|
2813次组卷
|
7卷引用:2017届山东临沂市高三理上学期期中数学试卷
2014·北京东城·一模
名校
5 . 对任意实数
定义运算“
”:
,设
,
若函数
恰有三个零点,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f283a930c2b8661ac90bc22d488f9fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be28b086fd0f31be9c403d67fd67c06.png)
若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783e5db3306917ffb6d8e7bfb78747bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-10-20更新
|
1179次组卷
|
7卷引用:2014届北京市东城区高三下学期综合练习二理科试卷
(已下线)2014届北京市东城区高三下学期综合练习二理科试卷(已下线)2014届北京市东城区高三下学期综合练习二文科试卷2015届安徽省安庆五校联盟高三下学期3月联考数学文科数学试卷山东省菏泽第一中学2018届高三上学期第一次月考数学(理)试题江西省上饶中学2018-2019学年高一上学期期中考试数学试题2【市级联考】辽宁省沈阳市2018-2019学年高一期末数学试题上海市上海中学2019届高三下学期开学摸底数学试题
名校
解题方法
6 . 齐王与田忌赛马,每人各有三匹马,田忌的上等马优于齐王的中等马,劣于齐王的上等马,田忌的中等马优于齐王的下等马,劣于齐王的中等马,田忌的下等马劣于齐王的下等马,共进行三场比赛,每次各派一匹马进行比赛,马不能重复使用,三场比赛全部比完后胜利场次多者为胜,则田忌获胜的概率为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
1033次组卷
|
3卷引用:2016届陕西省高三高考全真模拟四数学(文)试卷
13-14高三上·浙江杭州·期中
名校
7 . 已知函数
,若
且
在区间
上有最小值,无最大值,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0101893fe065a420a3e5558c571403c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d0e2a1684eff6837ba5894ca3fd76a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b51e94cb1fc62953989fa5c5ff7fe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
11-12高二上·江西·期末
名校
8 . 椭圆
的一条弦被
平分,那么这条弦所在的直线方程是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a7315208b83923a2bddaae013f7a6e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18e9b80fdeaa8bd3cf97b3c214448f2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知集合
,若对于任意
,存在
,使得
成立,则称集合
是“垂直对点集”.给出下列四个集合:
①
;②
;
③
;④
.
其中是“垂直对点集”的序号是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/840bd73317f781e4b6ba65625a72f67e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ec6481a31d338e905d607bc17fdd6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f73ce10423e80cee0e7d602ca77d198d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da3ff6f17be99ec311610efa08ba002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209269ac65116bd5387f20865fb33ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dabdff0fb7d2fd0702082a9b4c6e38d.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1700ed1657244f815f2903369a3236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f64a96aa3eba0a6b9779485d9dba9cc4.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
2017-10-13更新
|
1008次组卷
|
6卷引用:2012-2013学年广东省汕头市金山中学高二下学期期中理科数学试卷
10 . 设函数
的定义域为
,若存在闭区间
,使得函数
满足:①
在
上是单调函数;②
在
上的值域是
,则称区间
是函数
的“和谐区间”,
下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0195f699765021e2c6ea985e487971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f0dbc7a1166bd79a9b52d3c59e6a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
下列结论错误的是( )
A.函数![]() |
B.函数![]() |
C.函数![]() |
D.函数![]() |
您最近一年使用:0次
2016-12-06更新
|
446次组卷
|
2卷引用:2016-2017学年安徽师大附中高一上期中数学试卷