名校
解题方法
1 . 已知数列
为有穷正整数数列.若数列A满足如下两个性质,则称数列A为m的k减数列:
①
;
②对于
,使得
的正整数对
有k个.
(1)写出所有4的1减数列;
(2)若存在m的6减数列,证明:
;
(3)若存在2024的k减数列,求k的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281440c5e428da28c0a40fecbb87a83a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed25314606b875ae6cdfa2d073c73c85.png)
②对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937c09d82c480e4d67f8a48d3f66c5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7ae1214cc78e72fb613d7e649bc27b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b3392579424244c50ddf416ee3434d.png)
(1)写出所有4的1减数列;
(2)若存在m的6减数列,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f409ce4e6aa8638fe5880009dbb732f7.png)
(3)若存在2024的k减数列,求k的最大值.
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2024-01-25更新
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3795次组卷
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9卷引用:山东省日照市五莲县第一中学2024届高考模拟预测(一)数学试题
山东省日照市五莲县第一中学2024届高考模拟预测(一)数学试题江西省赣州市南康中学2024届高三“九省联考”考后模拟训练数学试题(一)安徽省合肥一六八中学2024届高三“九省联考”考后适应性测试数学试题(二)2024届广东省新改革高三模拟高考预测卷一(九省联考题型)数学试卷北京市通州区2024届高三上学期期末摸底考试数学试题(已下线)(新高考新结构)2024年高考数学模拟卷(三)(已下线)信息必刷卷01湖南省长沙市雅礼中学2024届高三下学期数学月考试卷(八)(已下线)数学(江苏专用01)
名校
解题方法
2 . 已知函数
.
(1)若
对于任意
恒成立,求a的取值范围;
(2)若函数
的零点按照从大到小的顺序构成数列
,
,证明:
;
(3)对于任意正实数
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707db95c67bd9bb4ff1f449903d40cbc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44ecf9a385b5f3a023a662b2e75a260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48350c9f896c18a64f27867ca81c9be2.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef26e8f565520685e2dc2dca27752db.png)
(3)对于任意正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b4256756f1416ad35f2227a616b7a7.png)
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2024-01-25更新
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3卷引用:山东省济南市山东实验中学2024届高三上学期第一次模拟测试数学试题
名校
解题方法
3 . 若椭圆
和
的方程分别为
和
(
且
)则称
和
为相似椭圆.己知椭圆
,过
上任意一点P作直线交
于M,N两点,且
,则
的面积最大时,
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b6494c8078692621054e98b8d0d874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9501c4c1f12367e5edc6f1f6e3c94c5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472393b18c7880e73b40e31fbe2d951c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98a8dc70ef391b5da94772c412d4f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234ca137f313c1286afd25c1f0536e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-01-17更新
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2239次组卷
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5卷引用:山东省济南市山东实验中学2024届高三上学期第一次模拟测试数学试题
名校
4 . 已知函数
,其导函数为
.
(1)若
在
不是单调函数,求实数
的取值范围;
(2)若
在
恒成立,求实数
的最小整数值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df9769064d7fc504b86c84eb1840573d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17033595c74fe51df64fe7ffae8926c.png)
您最近一年使用:0次
名校
5 . 如图,长方形
中,
为
的中点,现将
沿
向上翻折到
的位置,连接
,在翻折的过程中,以下结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/87118554-0e2d-4d19-a0c2-3b73f022413f.png?resizew=219)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3c7b63a986a98f64dade2d9b4e9805.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad09a769a75b107390b9eeccc929f761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe40405cd7bd60d69dd535d6da85c00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e7344dca1e40bf072371ddd5640111.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/87118554-0e2d-4d19-a0c2-3b73f022413f.png?resizew=219)
A.存在点![]() ![]() |
B.四棱锥![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
名校
6 . 如图所示的六面体中,
,
,
两两垂直,
连线经过三角形
的重心
,且
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/09457a3d-4a27-4e4f-acdc-aef9a4bd959c.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4db9b82b67efe45a02fca32bfcf5dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcb20a6972108871adbf284f9e5006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07e98f7a65097311e8d93bd9f2af26e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/09457a3d-4a27-4e4f-acdc-aef9a4bd959c.png?resizew=160)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() |
D.若点![]() ![]() ![]() |
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2023-12-20更新
|
771次组卷
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3卷引用:山东省潍坊市2024届高三上学期普通高中学科素养能力测评数学试题
名校
7 . 若
,则实数
最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088326f959fa01f9fc69fea537423d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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|
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9卷引用:山东省泰安肥城市2023届高考适应性训练数学试题(三)
名校
8 . 若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f5139e11d5d7b2be87f204b2ce73d7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-05-12更新
|
1560次组卷
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4卷引用:山东省日照市2023届高三校际联合三模数学试题
山东省日照市2023届高三校际联合三模数学试题湖北省2023届高三下学期5月联考数学试题四川省泸县第一中学2023-2024学年高三上学期开学考试数学(理)试题(已下线)第三章 利用导数比较大小 专题一 同构具体函数比较大小 微点4 构造具体函数比较大小综合训练
名校
解题方法
9 . 已知函数
,
.
(1)讨论
极值点的个数;
(2)若
恰有三个零点
和两个极值点
.
(ⅰ)证明:
;
(ⅱ)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3aa05bf7390b688b4923b3e57f699a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d277a5747e76c386963b5c98a7c69745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
(ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d1540b6b10f07a867618a1eec02e2a1.png)
(ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7961cbe98aac6a5fdee94582c341b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddb4410c39ba1112ea24b342ec119f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79fdabb9ea14c4a8a2a2f874c071480b.png)
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2023-05-08更新
|
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|
9卷引用:山东省青岛市2023届高三下学期第二次适应性检测数学试题
名校
10 . 已知函数
,
.
(1)当
时,讨论方程
解的个数;
(2)当
时,
有两个极值点
,
,且
,若
,证明:
(i)
;
(ii)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4f583a21e8774680dacc43ca7cd23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c944c1c2791f64d1f371d43e9a419983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db3e49df811c97550d42912410771d1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc9920abcee41ad09f346eeb981b9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d032f4b2ba5c86e3587b195d32b10c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d51a019839f799edfeba6d696c6d6c.png)
(i)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204c481a567855d042f3619351f71ffa.png)
(ii)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fc1157c75a6fefd470508dd0c77365.png)
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2023-04-30更新
|
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|
6卷引用:山东省泰安市2023届高三二模数学试题
山东省泰安市2023届高三二模数学试题辽宁省沈阳市东北育才学校2022-2023学年高二下学期期中数学试题(已下线)专题突破卷08 极值点偏移辽宁省沈阳市第二中学2023-2024学年高三上学期10月月考数学试题(已下线)重难点突破06 双变量问题(六大题型)(已下线)模块四 专题1 期中重组篇(辽宁卷)(人教B版高二下学期)