名校
1 . “奔驰定理”是平面向量中一个非常优美的结论,因为这个定理对应的图形与“奔驰”轿车,(Mercedesbenz)的logo很相似,故形象地称其为“奔驰定理”,奔驰定理:已知O是
内一点,
,
,
的面积分别为
,
,
,且
.设
是锐角
内的一点,
、
、
分别是的
三个内角,以下命题正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7ffcd1925a2b1259221c6a476152f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf9680f74a9ac5d934304654ce2771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319b6a5373bc8eb13772b8e6d047779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea3c7cd2f23b4521e64a7e64844ec48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089e8a7f6c535fc3cd270af428d55f65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a13fbc8218a1a1e872db81ed73a8bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若O为![]() ![]() ![]() |
D.若O为![]() ![]() ![]() |
您最近一年使用:0次
名校
2 . 已知函数
(
且
).
(1)若
,且
,求
的定义域;
(2)若
,函数
的定义域为
,存在
,使得
在
上的值域为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f30729daf2fbe0f8f339608cd64e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](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/5313c921defe84689aefde4773ad2b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119b20f27ee885c82edf447d24cc0cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2023-12-20更新
|
613次组卷
|
3卷引用:湖南省岳阳市湘阴县知源高级中学等多校2023-2024学年高一上学期12月月考数学试题
名校
3 . 已知函数
,若
满足
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd18b88c6b674a7f7b1bac886440017f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6983a32cbe55a07709e81bad0bb5f7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32603b42ba5e2efe9a382d1d26940b25.png)
A.若方程![]() ![]() |
B.若方程![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
2023-11-30更新
|
363次组卷
|
2卷引用:湖南省岳阳市岳汨联考2023-2024学年高一上学期11月期中数学试题
名校
解题方法
4 . 设
,用
表示不超过
的最大整数,
称为高斯函数,也叫取整函数.如
.设
,则下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](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/7179c645736d68c90023f83d7f11ed01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d82bab9f2808b11904d680eae089356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602c6c52cae281dc7dad9bc7cc07d6bb.png)
A.![]() |
B.函数![]() |
C.![]() |
D.函数![]() ![]() |
您最近一年使用:0次
2023-10-27更新
|
692次组卷
|
3卷引用:湖南省岳阳市岳阳县第一中学2023-2024学年高一上学期第一次月考数学试题
5 . 如图,
内接于
,
为
的直径,
与
相交于点
,
的延长线与过点
的直线相交于点
,且
.
(1)求证:
是
的切线;
(2)已知
,且
与
,
分别相交于点
,
,若
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad6f5682533d502818a2ae3701f93ff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/18/9007059a-9803-4c91-944a-fb2fd9c55331.png?resizew=133)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90cf06e696975c8313c5e9b66fda2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df2eff2a003b44d7779b5c255c474d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c416ce8af044b85f88512a52871224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4cdaf54255866a6665166d174ae6b05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
您最近一年使用:0次
名校
6 . 已知集合
.对于
,
,定义A与B之间的距离为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7438a7ce828983491700770dfd1d51ed.png)
.若集合M满足:
,且任意两元素间的距离均为2,则集合M中元素个数的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5adc45e7b1abfa6d19291fe4ec95984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b2e95177f28af239bf1f03cf2a4420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0ec400776bd3e62d45a6d21e219c7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7438a7ce828983491700770dfd1d51ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b800372ba17d4cc04166fa0816e2538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b626a2cad742c6613dc283fdab1e833.png)
A.4 | B.5 | C.6 | D.8 |
您最近一年使用:0次
2023-09-07更新
|
463次组卷
|
6卷引用:湖南省岳阳市2022-2023学年高一下学期期中数学试题
湖南省岳阳市2022-2023学年高一下学期期中数学试题(已下线)高一上学期期中考试选择题压轴题50题专练-举一反三系列山东省济南市市中区实验中学2023-2024学年高一上学期10月月考数学试题(已下线)专题01 集合与常用逻辑用语3-寒假作业单元合订本(已下线)1.2集合间的基本关系【第三练】(已下线)1.2集合间的基本关系【第三课】
22-23高二下·上海·期末
名校
解题方法
7 . 设
是定义在
上的奇函数,且当
时,
,若对任意的
,不等式
恒成立,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986cda000d28188fbf069d4587c7e23f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deb40d2f57f0b5f1d26fc6a670fa998b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9564a20c1081d01e2c1febb103046b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40532abcb1af5f61c3e4e06afc927787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-08-16更新
|
1250次组卷
|
6卷引用:湖南省岳阳市湘阴县知源高级中学2023-2024学年高一上学期第一次月考数学试题
湖南省岳阳市湘阴县知源高级中学2023-2024学年高一上学期第一次月考数学试题(已下线)专题02 高一上期中真题精选-期中考点大串讲(人教A版2019必修第一册)(已下线)高一上学期期末考试选择题压轴题50题专练-举一反三系列(已下线)高一上学期期末数学试卷(提高篇)-举一反三系列(已下线)上海高二下学期期末真题精选(压轴60题35个考点专练)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)广西南宁市武鸣区武鸣高级中学2024届高三上学期开学调研测试数学试题
名校
解题方法
8 .
中,
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb1f16cd873ede81738826d2f09bc8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/507445d564d44e35b30b12bc8fe0bb39.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-08-07更新
|
1942次组卷
|
9卷引用:湖南省岳阳市湘阴县第二中学2022-2023学年高一下学期数学竞赛试题
名校
9 . 已知
,则
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e0b5285abff01e0874603b3a7b1470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-08-06更新
|
1180次组卷
|
7卷引用:湖南省岳阳市平江县颐华高级中学2023-2024学年高一下学期开学考试数学试题
湖南省岳阳市平江县颐华高级中学2023-2024学年高一下学期开学考试数学试题湖南省郴州市“十校联盟”2023-2024学年高一上学期期末模拟数学试题河南省TOP二十名校2023届高三3月调研模拟理科数学试题(已下线)专题03 一网打尽指对幂等函数值比较大小问题 (练习)(已下线)专题2.3 幂函数与指、对数函数【九大题型】(已下线)重难点04 指、对、幂数比较大小问题【七大题型】(已下线)黄金卷03(理科)
名校
10 . 如图,圆心为C的定圆的半径为3,A,B为圆C上的两点.
(1)若
,当k为何值时,
与
垂直?
(2)若
的最小值为2,求
的值;
(3)若G为
的重心,直线l过点G交边
于点P,交边
于点Q,且
,
.证明:
为定值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/7/9785ae46-35c8-4c6f-8312-728689c016ae.png?resizew=154)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d33d7bbd89950f7ba1bf5a855b0ab9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1144b19a3d032433b77c8e07dca969a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b683b0c4ccd5747b8c41d4ed30d1e088.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7464972070329b8372b7c77885f77a12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d401876b078e318413b8ad876c54b7be.png)
(3)若G为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f73ba7fd5c3f0fbfb7325dbc1e1c1879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6f8a5f095834d20f66ffbd1cdd40bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587b693b82241eb9c32cdbb96c209f33.png)
您最近一年使用:0次
2023-07-06更新
|
649次组卷
|
2卷引用:湖南省岳阳市岳阳县第一中学2022-2023学年高一下学期期末数学试题