名校
解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92166d1f17b73baa6a5a0f906224fef4.png)
(1)当x∈[0,π]时,f(x)≥0恒成立,求实数a的取值范围;(参考数据:sin1≈0.84)
(2)当a=1时,数列{an}满足:0<an<1,
=f(an),求证:{an}是递减数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92166d1f17b73baa6a5a0f906224fef4.png)
(1)当x∈[0,π]时,f(x)≥0恒成立,求实数a的取值范围;(参考数据:sin1≈0.84)
(2)当a=1时,数列{an}满足:0<an<1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
您最近一年使用:0次
2020-06-10更新
|
874次组卷
|
4卷引用:安徽省蚌埠市2020届高三下学期高考模拟考试数学(理)试题
安徽省蚌埠市2020届高三下学期高考模拟考试数学(理)试题安徽省蚌埠市2020届高三下学期第四次教学质量检查数学(理)试题(已下线)专题22第一篇 热点、难点突破(测试卷一)(测)(理科)第一篇 热点、难点突破篇-《2022年高考理科数学二轮复习讲练测》(全国课标版)湖北省六校新高考联盟学校2024届高三上学期11月联考数学试题
2 . 已知函数
,其中
.
(Ⅰ)讨论函数
的单调性;
(Ⅱ)若
,
是方程
的两个不同的实数根,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0473ffcca997f603b285fffbbfdfe39d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(Ⅰ)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)若
![](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/92b3487be5d52a87eb0351a2c6844d0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67110ffd89c57170b89bc89b8279798.png)
您最近一年使用:0次
解题方法
3 . 已知数列
满足
,
.记
,设数列
的前
项和为
,求证:当
时.
(Ⅰ)
;
(Ⅱ)
;
(Ⅲ)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de423196da5c4349782846e0ba9b08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e551a512f992214f9706a2af5e8c47cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(Ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d124577c249670ff9a788bbb968062.png)
(Ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b73e09c5e1bbad60984ec6791bdfc9.png)
(Ⅲ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9bb7239ab4a338aef183134f2bbf8a.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
,且存在
,使得
,设
,
,
,
.
(Ⅰ)证明
单调递增;
(Ⅱ)求证:
;
(Ⅲ)记
,其前
项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c3cfd92b7157867ed0bbf56b6ea2c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50fa3ac831917a350333d50a86d07958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b6ab454199d2738ea1b5cefb133d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc85a01f2a5b003d545aabd58658f430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f347a1bd45e8fe728bef4952ff2e6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48b8a1b0a32980f175a122e21ea715c.png)
(Ⅰ)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c6648cdc6f9ffd069014c2d642400e.png)
(Ⅲ)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca472f02af024cd9550d751767f6044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5737f1f9cad2471f3ca53241b25a1eb9.png)
您最近一年使用:0次
名校
5 . 已知数列
满足
,
,其中常数
.
(Ⅰ)若
,求
的取值范围;
(Ⅱ)若
,求证:对于任意的
,均有
;
(Ⅲ)当常数
时,设
,若存在实数
使得
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8092e34ff2eae7c8430e4f725c5cb8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b9d614798b15eb2c8024401b838ba5.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d8d0a8b05b649194390123f5f578bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177d3c95da5b9253ef367d52506240d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302a52418906995053435a17a1d1a99c.png)
(Ⅲ)当常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b196937e9a4f97c05fbefd2e12806693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2abac23845353bd360aa2e5308b4baa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
您最近一年使用:0次
解题方法
6 . 已知数列
满足
,
.求证:当
时,
(Ⅰ)
;
(Ⅱ)当
时,有
;
(Ⅲ)当
时,有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f47558bbba6deebd57286647039f58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(Ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae9f862d9c4f663a0fa786e56895440.png)
(Ⅲ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc1715a0491fddb0403799d34e0daa0.png)
您最近一年使用:0次
7 . 口袋中有大小、形状、质地相同的两个白球和三个黑球.现有一抽奖游戏规则如下:抽奖者每次有放回的从口袋中随机取出一个球,最多取球2n+1(n
)次.若取出白球的累计次数达到n+1时,则终止取球且获奖,其它情况均不获奖.记获奖概率为
.
(1)求
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec1b383f61d7a71f10ce999c9321381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18adc4ec9010e1e99b882761e9c2c2e.png)
您最近一年使用:0次
2020-06-05更新
|
1873次组卷
|
4卷引用:江苏省南京市2020届高三下学期6月第三次模拟考试数学试题
江苏省南京市2020届高三下学期6月第三次模拟考试数学试题(已下线)专题10-2 概率压轴大题(理)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)湖北省九校教研协作体2022-2023学年高二上学期9月联考数学试题(已下线)4.1.3独立性与条件概率的关系(2)
8 . 已知函数
(a
R),其中e为自然对数的底数.
(1)若
,求函数
的单调减区间;
(2)若函数
的定义域为R,且
,求a的取值范围;
(3)证明:对任意
,曲线
上有且仅有三个不同的点,在这三点处的切线经过坐标原点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2024a27d85c91efa4dace232c72549b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6922ed9d20c19c11aa47f599cd3b87ba.png)
(3)证明:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80fff7c8c260edb3ce51f15f8d617633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
9 . 已知集合
中含有
个元素,其中
,
,集合
的含
个元素的子集的个数为
,即集合
的含
个元素的子集的个数为
,集合
的含
个元素的子集的个数为
,…记
.
(1)求
,
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662ad36395979eab720186c0c8e1ee88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/112335b5cf30a8fce6a64e3b0741e1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7601dbefa6836756e3d2731b79af0126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662ad36395979eab720186c0c8e1ee88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4624141790a9fddfb8be85592ccf3e1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a98d74cffe29576800e866e803e20e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54d826183898576f2ddc590665da99bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39222f0687c9124bddb35544bcc7798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cbc9a4fad11ecf49de9d9310f12136d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98928997add72c1e35f3fe3aa36a981a.png)
您最近一年使用:0次