11-12高三下·吉林长春·开学考试
名校
1 . 已知函数
的定义域为
,若存在常数
,对任意
,有
,则称
为
函数,给出下列函数:
①
;
②
;
③
;
④
是定义在
上的奇函数,且满足对一切实数
均有
.
其中是
函数的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0145d3a0780ec19a5d09b169412654c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587882ac081850caa4447c44a7dbb845.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca24790a1a92e9ceb376ce62df4e0e6.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1530a52e32f2e270848d323f7bac6472.png)
其中是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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2 . 在实数集R中定义一种运算“⊙”,具有性质:①对任意a、b∈R,a⊙b=b⊙a;②a⊙0=a;③对任意a、b∈R,(a⊙b)⊙c=(ab)⊙c+(a⊙c)+(b⊙c)﹣2c,则函数f(x)=x⊙
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9ff510fd3fcaf785b513bab3fb852c.png)
A.2 | B.3 | C.![]() | D.![]() |
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2015-02-05更新
|
240次组卷
|
4卷引用:2015届陕西省西安市第一中学高三大练习一理科数学试卷
2016·上海·一模
3 .
表示一个两位数,记
,如
,则满足
的两位数共有______个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8b84a2ad95e2e4b1eec2ac1dda6629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f436c4349a81a95d7b9028a0076785.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f9125ec5a81df4ff5e562cdfdc3405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2030ef3a262dff91d392fdc967c0922a.png)
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名校
4 . 如果向量
与
的夹角为
,那么我们称
为向量
与
的“向量积”,
是一个向量,它的长度
,如果
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b0cb9f6ed923e6c58e8312c96c769e.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1674d14213c4d560adf90778bba1825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1674d14213c4d560adf90778bba1825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66558cfadb748daba7767919d335ce87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd88b628fffac73eb6963e0d8e225e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4414868cf52b40a6ce7715727f28b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bad371753f8949c39c318f987d1f7c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b0cb9f6ed923e6c58e8312c96c769e.png)
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9-10高一下·浙江温州·期末
名校
5 . 对于函数
,定义域为D, 若存在
使
, 则称
为
的图象上的不动点. 由此,函数
的图象上不动点的坐标为____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3102c0a2f53b80f9dddbf9352537e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73bc955d158efde0bdd62d14a60a65e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b1d3071bc9a3925a8890549ec037ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/785927faeb8b031a8ef0c44ba5a177fd.png)
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11-12高三上·河南焦作·期末
6 . 如图,⊙O1与⊙O2相交于A、B两点,过点A作⊙O1的切线交⊙O2于点C,过点B作两圆的割线,分别交⊙O1、⊙O2于点D、E,DE与AC相交于点P.
(1)求证:AD//EC;
(2)若AD是⊙O2的切线,且PA=6,PC =2,BD =9,求AD的长.
(1)求证:AD//EC;
(2)若AD是⊙O2的切线,且PA=6,PC =2,BD =9,求AD的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/16/c4aac7c2-bfd7-43b5-809d-3078379da398.png?resizew=224)
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2016-12-01更新
|
286次组卷
|
5卷引用:2011届河南省焦作市高三第一学期期末考试数学文卷
(已下线)2011届河南省焦作市高三第一学期期末考试数学文卷(已下线)2012届河南省中原六校高三第一次联考理科数学试卷2015届黑龙江省哈尔滨六中高三下学期第四次模拟理科数学试卷2015届黑龙江省哈尔滨六中高三下学期第四次模拟文科数学试卷2016届黑龙江省大庆一中高三下学期开学考试理科数学试卷
名校
7 . 对于函数
、
和区间
,如果存在
,使得
,则称
是函数
与
在区间
上的“互相接近点”.现给出两个函数:
①
,
; ②
,
;
③
,
; ④
,
.
则在区间
上存在“互相接近点”的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0b669ef4514f24ee09adeff7f41238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3102c0a2f53b80f9dddbf9352537e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6c310dc168cf97b655bfd1468f2339.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0b669ef4514f24ee09adeff7f41238.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1c079afd1b058adc67a50f48f3d466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc2ec240ed620aca045b51217998cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec84404bbf6cf4a9d992e1760dcfdd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7cc2aa5c5d4040c66e6794e71f48647.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438a03c27278677f8cddcc5348e7ee02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c10803c113efe2d4e59371536bae045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4306fb6d5419322b4b7b9140e06e43a0.png)
则在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
A.①② | B.③④ | C.②③ | D.①④ |
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8 . 已知
表示不大于
的最大整数,设函数
,得到下列结论:
结论1:当
时,
.
结论2:当
时,
.
结论3:当
时,
.
……
照此规律,结论6为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c04d2f123aeb104f1d81c70551e84ae.png)
结论1:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d712e5dc451ae02ef4442ba59fb25a3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329fc41b05b207fd7d6033cc11eb477d.png)
结论2:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd428e8f0f103d78aee31544170d49c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ccd4512b15317daff7698e8342b83a9.png)
结论3:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8d9af45c4122073681e18e7ffc4e63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf1445daff396d241bd93a66828ade3.png)
……
照此规律,结论6为
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2017-05-03更新
|
156次组卷
|
3卷引用:山西省晋中市榆社中学2016-2017学年高二下学期期中考试理科数学试题
9 . 我们把形如
的函数称为“莫言函数”,其图象与
轴的交点关于原点的对称点称为“莫言点”,以“莫言点”为圆心且与“莫言函数”的图象有公共点的圆称为“莫言圆”,当
时,“莫言圆”的面积的最小值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d04956d1096baf50f1f3b41c852b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
10 . 若函数
在区间
上恒有
成立,则称区间
为函数
的“
度约束区间”,若区间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c960ab7730cac585d77ccd54f314378d.png)
为函数,
的“2度约束区间”,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8667b6ac60ca2cdde42c98bba1de929b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345663acc0b8dfd215e68c9cbc43ec39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8667b6ac60ca2cdde42c98bba1de929b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c960ab7730cac585d77ccd54f314378d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d0f5d72f3d4d8b7fa0ea8b8c8c6e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca4c969ef2ffe1d0c9b4fc89ca6a447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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