1 . 已知函数
(
),则函数
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ac9a839b199426d5d7bf13386fd36e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f274f1247962a5b263183922fedfa086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2 . 已知数列
满足
,
.
(1)若
是递增数列,求实数
的取值范围;
(2)若
,且对任意大于
的正整数
,恒有
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fab51121848ce166035ceab6f4e00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d0b399e3826e2721d683a357fe5dd4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e144b442dc601367909266594699b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaacfaef44a654c0a1c283ef03fc0550.png)
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名校
3 . 设函数
的定义域为
,若函数
满足条件:存在
,使
在
上的值域是
,则
称为“倍缩函数”,若函数
为“倍缩函数”,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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40ee87e42cc88a4fdf1d21bf61781224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887f6a9979510535228f6167f152d06a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec480307e1b2f8c14086af6b9bf2cca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e46bff1ba235329ed6ae1321e33f3b5.png)
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2020-03-19更新
|
1842次组卷
|
6卷引用:浙江省宁波市余姚中学2017-2018学年高二下学期期中数学试题
名校
4 . 设
,
是正整数,满足
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b1b5e71aaf8a19aca95ee74a1c59d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa7bbc7b8dd60e3abc0f62b9913fb57.png)
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名校
解题方法
5 . 已知椭圆
,直线
不过原点
且不平行于坐标轴,
与
有两个交点
,
,线段
的中点为
.证明:
(
)直线
的斜率与
的斜率的乘积为定值
.
(
)若
过点
,延长线段
与
交于点
,当四边形
为平行四边形时,则直线
的斜率
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ce159f327425b6e1cc1334877eb6f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f950f722a326aa7e191828f1373284.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570c8e60ade774f91cf6bfe48a6117c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226c5e4b7d65043ee34efa4b56f210ef.png)
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名校
6 . 如图,在
中,
分别为
上的点,且
,
,
.设
为四边形
内一点(
点不在边界上),若
,则实数
的取值范围为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927456b0989846a2f1573844bbaa2105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/746ee1515a178948b04f535705c6f738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ef4036427f8a42a22bc5ed0ae26189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c2dcc2a3955011e0e503de6225fca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e77686cf448ff6cea9bfc021581da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a61d8bedef61745ee4fd89a8c0c119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3c25c92950e902bf3d79a41cb38e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/3ad0d689-3d51-4bf1-9273-03aa043e42b5.png?resizew=218)
您最近一年使用:0次
2019-06-25更新
|
4336次组卷
|
11卷引用:2019年全国高中数学联赛浙江省预赛
2019年全国高中数学联赛浙江省预赛吉林省蛟河市一中2018-2019学年高一下学期第三次测试数学试题人教A版(2019) 必修第二册 突围者 第六章 第三节 课时1平面向量基本定理天津市耀华中学2021届高三下学期一模数学试题山东省新泰市第一中学2021-2022学年高一下学期期中考试数学试题苏教版(2019) 必修第二册 过关斩将 第9章 9.3.1 平面向量基本定理(已下线)6.2.1向量的加法运算(分层作业)-【上好课】2022-2023学年高一数学同步备课系列(人教A版2019必修第二册)(已下线)微专题02 平面向量的基本定理(1)-【微专题】2022-2023学年高一数学常考点微专题提分精练(人教A版2019必修第二册)上海市上海中学2022-2023学年高一下学期期末数学试题(已下线)重难点专题04 妙用等和线解决平面向量系数和、差、商问题-【帮课堂】(苏教版2019必修第二册)(已下线)【讲】 专题一 平面向量线性运算的最值问题(压轴大全)
7 . 设
为正整数.若数字
构成的排列
满足
(1)
;
(2)
;
(3)
,
则称此排列为“N型”的.记
为所有N型排列的个数.
(1)求
、
的值;
(2)证明:对任意正整数
,
均为奇数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3860f7f37da2dbf7b1df41b29503397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c59221a068df563c785546c389be677.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2750b2fb577342d21ff3a2c58bf3f358.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bbf794832ea65fa70d1d2d12214575.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fcdd09aae5c9a30d3b0bea09ef57d7.png)
则称此排列为“N型”的.记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8904e7018ec79c8b0efdcb3ba67cb7cb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
(2)证明:对任意正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8904e7018ec79c8b0efdcb3ba67cb7cb.png)
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8 . 设
满足
数列
是公差为
,首项
的等差数列; 数列
是公比为
首项
的等比数列,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4935544664f86edc57a0c3410fcf897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5217df154813a81ad37c406027e9f667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c6099506bd60534ed57a71e3678b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affd21d3fc4f76dcc7fffa227541df28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6cc218c568cc9d08e620696d1f61f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e8e67f649bb2e18fc02d6118ff4e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/decb5e8546e79397586cbbdf0fc2e085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1f5a2d53d857943074a092006e110d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50dedd2d9712979cae558023a3ae94b9.png)
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