名校
解题方法
1 . 已知函数
.若函数
对一切
均成立,则实数
的取值范围______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f207d545352a63e27d8b4dd729f04f66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a8a9f4f0d6590de86becb733bd1b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb005769d5478c56fc5a01d824167d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
2 . 已知函数
,函数
.
(1)若
,求
的值域;
(2)若
:
(ⅰ)解关于
的不等式:
;
(ⅱ)设
,若实数
满足
,比较
与
的大小,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25d5c7479bf62d5c9fc71bf46b56866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd6cc4bdc89f1475cd1b3e21808ff6a3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77589ec03475a3a653d684f6f23b467.png)
(ⅰ)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
(ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604be3e10ddd5e520c921a8e5ab923e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a99a77bd57c52838c723803db147e17d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
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解题方法
3 . 在
中,
对应的边分别为
.
(1)求
;
(2)奥古斯丁•路易斯・柯西,法国著名数学家.柯西在数学领域有非常高的造诣.很多数学的定理和公式都以他的名字来命名,如柯西不等式、柯西积分公式.其中柯西不等式在解决不等式证明的有关问题中有着广泛的应用.
①用向量证明二维柯西不等式:
;
②已知三维分式型柯西不等式:
,当且仅当
时等号成立.若
是
内一点,过
作
的垂线,垂足分别为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c1e84aaa7e1b5c1283075b36c72fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcb55ae794081fa9e39ea5657fa5d41e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)奥古斯丁•路易斯・柯西,法国著名数学家.柯西在数学领域有非常高的造诣.很多数学的定理和公式都以他的名字来命名,如柯西不等式、柯西积分公式.其中柯西不等式在解决不等式证明的有关问题中有着广泛的应用.
①用向量证明二维柯西不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1befdda5f9e5055b0d2ae58b1b4b201.png)
②已知三维分式型柯西不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1358300202bcbca3c7a48fa40217a4ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5ba135022def1bcc1cddea66496706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f8e0e66571238a7e1c756b99b3113d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0e08a39c6619123557148d195abfbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927456b0989846a2f1573844bbaa2105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d731994627d9911585d053afc821e7.png)
您最近一年使用:0次
2024-05-12更新
|
423次组卷
|
5卷引用:山东省实验中学2023-2024学年高一下学期4月期中考试数学试题
山东省实验中学2023-2024学年高一下学期4月期中考试数学试题(已下线)【江苏专用】高一下学期期末模拟测试A卷(已下线)专题05 解三角形(2)-期末考点大串讲(人教B版2019必修第四册)山东省青岛市即墨区第一中学2023-2024学年高一下学期第二次月考数学试题广东省广州市真光中学2023-2023学年高一下学期月考数学试题
名校
4 . 已知数列
满足:
,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7743378bbbd5066278db35f1a5710400.png)
A.若数列![]() ![]() | B.存在![]() ![]() |
C.任意![]() ![]() | D.任意![]() ![]() |
您最近一年使用:0次
2024-01-25更新
|
582次组卷
|
4卷引用:安徽省芜湖市2023-2024学年高二上学期1月期末教学质量监控数学试题
名校
5 .
,记
为不大于x的最大整数,
,若
,则关于x的不等式
的解集为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f2754b3b1dad0794ec35a1771e1453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50af11c345056215054f7cfe679939da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f99d9c1529498d285e3457470c3eac.png)
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2023-12-29更新
|
320次组卷
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2卷引用:江西省宜春市宜春中学2023-2024学年高一上学期期末数学试题
解题方法
6 . 设在二维平面上有两个点
,它们之间的距离有一个新的定义为
,这样的距离在数学上称为曼哈顿距离或绝对值距离.在初中时我们学过的两点之间的距离公式是
,这样的距离称为欧几里得距离(简称欧氏距离)或直线距离.
(1)已知
两个点的坐标为
,
,如果它们之间的曼哈顿距离不大于3,那么
的取值范围是多少?
(2)已知
两个点的坐标为
,
,如果它们之间的曼哈顿距离要恒大于2,那么
的取值范围是多少?
(3)若点
在函数
图象上且
,点
的坐标为
,求
的最小值并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773e7e8ebe0a40cac747f803cb241afc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88eda79e21c7274b447814bcea5f6d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89cff4086177b23e54ea90cc0ddb06e.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dc2c7849be2c51996056536b668a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e5eea5f7f98ca8632358b7e49ceb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228e67748b557e32e2eac60f9be6c15c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ec9c0b2693bcfaed1ef85dd497d747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f109ad046f362d8686c7ef9810c568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2702a5539ca829b8b7a08407f0996e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e7fbae72610f8c074ee2d1e73a41b34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41c4d93dfc845297d4d5dbd7999eab56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77210ed70f44ca3b28b2803c94c2868d.png)
您最近一年使用:0次
名校
解题方法
7 . 对于空间向量
,定义
,其中
表示x,y,z这三个数的最大值.
(1)已知
,
.
①直接写出
和
(用含
的式子表示);
②当
,写出
的最小值及此时
的值;
(2)设
,
,求证:
;
(3)在空间直角坐标系
中,
,
,
,点Q是
内部的动点,直接写出
的最小值(无需解答过程).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b303ef66609858e8ab234b6dabccba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e382f70d741ee01c165391ce980155d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4461408813c1476a8a8073c83b8989.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23056c429159c0198f865ff11972d8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e17d2355419564f6d9737295412b58c.png)
①直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9873960d64934875139754efbdfe951d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13af5f843689a63bc176c2d2171b6a1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53168695826b0a33a23067b76173c7e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780ef5119f58f853ce9dd2b9176ffdde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778ae4468d857c229073875e0ee0ce31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6772fa3937b97d9ec3aec1ea2ea143b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95086cc97ef93f5166489b3bc47e1911.png)
(3)在空间直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b32ab04dd852329d5918b177c199eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee736aec4313d04a5921ed7e5800b3b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d04a00e46c1ffb335f73506041c66dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084fc7655647b596d07e80269d086e5a.png)
您最近一年使用:0次
名校
解题方法
8 . 对于两个实数
,
,规定
,
(1)证明:关于
的不等式
解集为
;
(2)若关于
的不等式
的解集非空,求实数
的取值范围;
(3)设关于
的不等式
的解集为
,试探究是否存在自然数
,使得不等式
与
的解集都包含于
,若不存在,请说明理由,若存在,请求出满足条件的
的所有值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4511ddd731101f31a812687f876d3d.png)
(1)证明:关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4467d44e9a3a7faa7b86a258aeecd06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4d721dec802cd82c01d1ff1e9760c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc051b9ac95776718cbcb3f740931f5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/700fa4dfbe1d291042d435778db55f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7eca6a3e53f7e7b89c996322588a505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 设
是不小于1的实数.若对任意
,总存在
,使得
,则称这样的
满足“性质1”
(1)分别判断
和
时是否满足“性质1”;
(2)先证明:若
,且
,则
; 并由此证明当
时,对任意
,总存在
,使得
.
(3)求出所有满足“性质1”的实数t
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0778e3709b93159944ccc56980fad9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d43ae87f6a2e1d48d8d9520a8d2c439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49fe573a4cc4c26f5392b302e862e59f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(1)分别判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22857b6d571d49dd4e0f05dc45b5b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321d2ec30d5ee9bce1b3511154d6c4d8.png)
(2)先证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2db5a34c51c8226ca63a072fb52b03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c72f29240189407f1bcd6cd3657fbc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/123e711601e9f7e0d7526450d6d10157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2331dac820c332e47c71278a5d3ee582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0778e3709b93159944ccc56980fad9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6c6f9a53c916eda64da013720d4f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f688ebcb6dccfd686780052b1052631.png)
(3)求出所有满足“性质1”的实数t
您最近一年使用:0次
10 . 已知
:
为有穷数列.若对任意的
,都有
(规定
),则称
具有性质
.设
.
(1)判断数列
:1,0.1,-0.2,0.5,
:1,2,0.7,1.2,2是否具有性质P?若具有性质P,写出对应的集合
;
(2)若
具有性质
,证明:
;
(3)给定正整数
,对所有具有性质
的数列
,求
中元素个数的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a7c438854813f2ed9f8a1c60b35eb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8ef78cc882ed9f321064e44b7f257c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7e9edf6d0468e0f8ca78b8bac63bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b740bc48c9718a294c11a1485fd14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46614bf79e50b81f49c1366de9799ba.png)
(1)判断数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5002f030017f6f0b34a61b2e15c5a9cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed1adc648cc7d8fe7ac43df4b918f11.png)
(3)给定正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
2023-11-02更新
|
493次组卷
|
2卷引用:北京一零一中2023-2024学年高二上学期期中考试数学试题