名校
解题方法
1 . 设
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef2a45773db8d347f0cfa4e4fca7fd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b486d6d9a855a8cf9ee2c69c04ae8ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8add3bac16eaf09b04d5a976828a561.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6卷引用:北京市北京师范大学附属中学2022届高三10月月考数学试题
2 . 已知抛物线
,O为坐标原点.
(1)过点O作两相互垂直的弦
,设M的横坐标为m,用m表示
的面积,并求
面积的最小值;
(2)过抛物线上一点
引圆
的两条切线
,分别交抛物线于点B,C,连接
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ad7c068b9b7c0fd764cf7746407079.png)
(1)过点O作两相互垂直的弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f65dbed884e2248ec075655c684aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
(2)过抛物线上一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c99e40c95d7029c040c66fce3d23d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ecf7a6913d90c2df051d608011cc57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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21-22高二上·北京西城·期中
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3 . 对于给定的正整数n,记集合
,其中元素
称为一个n维向量.特别地,
称为零向量.设
,
,
,定义加法和数乘:
,
.对一组向量
,
,…,
(
,
),若存在一组不全为零 的实数
,
,…,
,使得
,则称这组向量线性相关.否则,称为线性无关.
(1)对
,判断下列各组向量是线性相关还是线性无关,并说明理由.
①
,
;②
,
,
;③
,
,
,
.
(2)已知向量
,
,
线性无关,判断向量
,
,
是线性相关还是线性无关,并说明理由.
(3)已知
个向量
,
,…,
线性相关,但其中任意
个都线性无关,证明下列结论:
①如果存在等式
(
,
),则这些系数
,
,…,
或者全为零,或者全不为零;
②如果两个等式
,
(
,
,
)同时成立,其中
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d916961d15be6e499999e2fbe51c456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac852f327effde190b9ebf3dd08e037c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a13d67dfa8d6f81c9aa06ca42c9e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2668c56f2e7bb75917c8b7d7b09c8926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b18d4591126e3801e10b93dadf2df3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14dfee189ba5596b1fe73fef044b4687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4146baa4c775fef17a3eb033b2c1691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a40932863dcc8cb8356bbd487eaf196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43fd777be9b2e4fdfe3fbe9a7cdde79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e74e0eba2b8dbf3d09f6e6382f4c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c567e4139b2be7a0ac01f3430d2d54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1445d8e79cc2309e20001952f2b742d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d2dc187e5bae6ab191f2442948763ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5259301dfd6e050de40be969068229b4.png)
(1)对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74044239e1bc20b87b6be3f40b282675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be93e52fa914240b43743270b76a8fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74044239e1bc20b87b6be3f40b282675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be93e52fa914240b43743270b76a8fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d159653ffeca0f732a520f9d52eaf5fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cb112690d7eb559b09a4f7666ff10ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7308ce4466feaf0c214ac02503c83029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250be63dcc2692aceeed802b008e767b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca2e34d347c50b4de2ac8a306ead0e9c.png)
(2)已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac852f327effde190b9ebf3dd08e037c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e257e6c38a24ced4f9423f7f51b0e92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f168ab643bde113e92134b3fa8139665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f7e488464e41e1a1e1eed427154aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81c769ca2d340eb5ad4d16cd54852990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e6faf15e812aa5e0f9272c8dbaa3591.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2ea5126ca30d68cc8b70f03860ba2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a40932863dcc8cb8356bbd487eaf196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43fd777be9b2e4fdfe3fbe9a7cdde79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0c36e75691a88bd6e38e6269e69fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1e94f660b7d05de4be4b5fbd9041f4.png)
①如果存在等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad741efadd0b14577a80df4c243e3b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7368220470ebd17a0fd2bcf1f9fd495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/299d6864de87fd34448379b795776334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27628b047da341c79074ea4aa938ddc8.png)
②如果两个等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad741efadd0b14577a80df4c243e3b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/898ac87221725132b69725b4042bb441.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7368220470ebd17a0fd2bcf1f9fd495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d66379e8d6cb9d00a3287d434fa3c9f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/299d6864de87fd34448379b795776334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f165fa05c199307b89a91027dd6d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecd9175a6d8d1d75238a4b60db254846.png)
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(已下线)北京市第四中学2021-2022学年高二上学期期中考试数学试题北京市昌平区第二中学2022-2023学年高二上学期10月月考数学试题江苏省南通市如皋市2024届高三上学期1月诊断测试数学试题湖北省孝感市高级中学2024届高三上学期期末数学试题广东省深圳市南山区华侨城中学2024届高三下学期一模适应性考试数学试题重庆市九龙坡区育才中学2023-2024学年高一下学期寒假检测定时训练数学试题(已下线)最新模拟重组精华卷1-模块一 各地期末考试精选汇编(已下线)新题型01 新高考新结构二十一大考点汇总-3(已下线)专题22 新高考新题型第19题新定义压轴解答题归纳(9大核心考点)(讲义)(已下线)黄金卷03(2024新题型)福建省福州外国语学校2023-2024学年高一下学期3月月考数学试卷辽宁省东北育才学校双语校区2023-2024学年高一下学期期中考试数学试题湖南省衡阳市第八中学2024届高三下学期适应考试数学试题
4 . “六边形教室”是四中校友记忆中不可磨灭的一部分.空间中,教室的形状近似一个正六棱柱.设正六棱柱
中,所有棱长均相等,M、N分别是四边形
,
的中心,设MN与
所成的角为
,
与
所成的角为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858be9a2f30a22cfdebeaa5bf2e45b4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30bbe0ca8db43552ce01d592c80523e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21346b407532a0e94e70d14de67ef82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c597ff77c65c5add6f50294e3eee9536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9fcaa804011c37873b03ee284504fe.png)
A.120° | B.90° | C.75° | D.60° |
您最近一年使用:0次
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5 . 有三个房间需要粉刷,粉刷方案要求∶每个房间只用一种颜色,且三个房间颜色各不相同.三个房间的粉刷面积和三种颜色的涂料费用如表∶
那么在所有不同的粉刷方案中,最低的涂料总费用是___________ 元.
房间A | 房间B | 房间C | ||
35![]() | 20![]() | 28![]() | ||
涂料1 | 涂料2 | 涂料3 | ||
16元/![]() | 18元/![]() | 20元/![]() |
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6 . 在长方形
中,
,点
是边
上任意一点,设
,
,
与
的函数关系式记为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec233d559487a66d0558df1f339df04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c29bf5a05dd46f6e03dfd22c32f7ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1db003883ae6357e70de8743d2d9eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
A.函数![]() | B.![]() ![]() |
C.函数![]() ![]() | D.函数![]() ![]() |
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解题方法
7 . 北京2022年冬奥会将于2022年2月4日开幕.某社区为了宣传冬奥会,决定在办公楼外墙建一个面积为8
的矩形展示区,并计划在该展示区内设置三个全等的矩形宣传栏(如图所示).要求上下各空0.25
,左右各空0.25
,相邻宣传栏之间也空0.25
.设三个宣传栏的面积之和为S(单位:
),则S的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba007666deb89951641bd1e24bc174a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba007666deb89951641bd1e24bc174a2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/bf639c52-829f-4004-a1c1-53791f7e171a.png?resizew=193)
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9卷引用:北京师大实验中学2022届高三12月份月考数学试题
北京师大实验中学2022届高三12月份月考数学试题北京市朝阳区2022届高三上学期期中质量检测数学试题北京师范大学附属实验中学2022届高三12月统一练习数学试题河南省信阳市罗山县2021-2022学年高三上学期第二次调研考试文科数学试题(已下线)8.1 二分法与求方程近似解- 2021-2022学年高一数学10分钟课前预习练(苏教版2019)2023版 湘教版(2019) 必修第一册 过关斩将 第2章 2.1.2基本不等式+2.1.3基本不等式的应用北京市中关村中学2023届高三上学期10月月考数学试题(已下线)第06讲 基本不等式(8大考点)(3)北京市第五中学2024届高三上学期第二次阶段检测(期中)数学试题
8 . 已知有限集X,Y,定义集合
,且
,
表示集合X中的元素个数.若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93e029c4aef43f720a14873a8291f50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12ef58866a15dbea556f9676fdf383f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4f25490f06e68a62fb56304dc057df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36e4fa5b81a30677413dc43bed0b8bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c9dbd0cfad34471ddffd2c60d97b259.png)
A.3 | B.4 | C.5 | D.6 |
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4卷引用:北京市北京师范大学附属中学2022届高三10月月考数学试题
北京市北京师范大学附属中学2022届高三10月月考数学试题(已下线)专题01 集合与常用逻辑用语常考基础题型-2021-2022学年高一《新题速递·数学》(人教A版2019)辽宁省大连育明高级中学2022届高三第一次模拟考试数学试卷(已下线)考向01 集合(重点)
名校
解题方法
9 . 若定义城R的函数
满足:
①
,②
.则称函数
满足性质
.
(1)判断函数
与
是否满足性质
,若满足,求出T的值;
(2)若函数
满足性质
判断是否存在实数a,使得对任意
,都有
,并说明理由;
(3)若函数
满足性质
,且
.对任意的
,都有
,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b56d70c9a83ac1d7e4d2330a7c22cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28aba6b67c2d9342566f6810f1e12795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a318eb5a4da016d3d993175e845a90ab.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3cc66b811ad2395efe04d93b61c711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cfdcca734ff2194e6734d2ac23162f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a318eb5a4da016d3d993175e845a90ab.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5d8bc28ee110a9540f383828b7d245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998843a4e08b5c8a5dba830fdd6412ef.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0127f7421ce1839e335f091d730736af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2635c6e599f816c706e471a3c197d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d4a4d94615e427e4e78061000d5e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1db6c94b94afc372212a81cc1f4dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42574bdabc8f77d550cb7d554d11a25.png)
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5卷引用:北京师范大学附属实验中学2021-2022学年高二上学期开学数学试题
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10 . 用铁皮围成一个容积为
的无盖正四棱柱形水箱,需用铁皮的面积至少为_____
.(注:铁皮厚度不计,接缝处损耗不计)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a7b5c05bb3171c5c30f6c118da386ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c901bcdfa58f0c68ad0161b0bab269.png)
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2021-08-06更新
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495次组卷
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3卷引用:北京市西城区2020-2021学年高二下学期期末数学试题