名校
解题方法
1 . 已知
,若m,
,求证:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/736085d5dadfb7081c13acb12899490a.png)
(2)设a,b是两个不相等的正数,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bdcfc71b422a73d7110b17e57c0e161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9b6ad6f6fce0c84edfbc7b9802e3d7.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/736085d5dadfb7081c13acb12899490a.png)
(2)设a,b是两个不相等的正数,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f00f997ae12c30f551adb834e1d7ef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d2a320b9ff137ce3632296c4b1d79a.png)
您最近一年使用:0次
2 . 已知
,
,
.
(1)求证:
;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c64bb5e929188c211a517a1ec52ce19.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56667aabbe787eb1c3189d487d203e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce46f77ede312d641a433e374f84c2d0.png)
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2020-03-04更新
|
505次组卷
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8卷引用:2020届河南省顶级名校高三1月教学质量测评理科数学试题
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3 . 下面几个不等式的证明过程:①若
、
,则
;②
且
,则
;③若
、
,则
.其中正确的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b0d6209361e6b57c5cf7b2c943030e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8a3dd601ea3c860b761d11b00f4874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ee641d764a2ab32b0db2f253fe7ebc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2904a741574bd236cb05407bb5c6abc4.png)
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名校
解题方法
4 . 已知
,
,
为正数,且满足
.证明:
(1)
;
(2)
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751e274e9107d780c39ba9c49d6daefb.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4ce85547266d66174062f1700fe1e2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4032f478968290363b0f6488610e123.png)
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2020-02-18更新
|
849次组卷
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12卷引用:2020届江西省吉安市高三上学期期末数学(文)试题
2020届江西省吉安市高三上学期期末数学(文)试题2020届江西省吉安市高三上学期期末数学(理)试题2020届高三2月第02期(考点14)(文科)-《新题速递·数学》陕西省汉中市部分学校2019-2020学年高三下学期3月线上模拟调研测试数学(理)试题四川省阆中中学2020届高三适应性考试(一)数学(理)试题陕西省宝鸡市千阳中学2021届高三下学期第六次适应性训练理科数学试题陕西省宝鸡市千阳中学2021届高三下学期第六次适应性训练文科数学试题(已下线)专题22 第一篇 热点、难点突破(测试卷二)(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)(已下线)专题06 《不等式》中的压轴题(2)-2021-2022学年高一数学上册同步培优训练系列(苏教版2019)四川省广安市第二中学校2022-2023学年高三上学期一诊模拟考试数学(理)试题四川省广安市第二中学校2022-2023学年高三上学期一诊模拟考试数学(文)试题广西桂林市田家炳中学2023届高三上学期10月月考数学试题
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5 . 已知函数
,M为不等式
的解集.
(1)求M;
(2)证明:当
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d235c1b39b83168b130bd4724e53a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d24227741bf427e6bd73490baf3c3d6.png)
(1)求M;
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2b85186925658e66d8541a5645269e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efbf3eb3221ab3d3ace3044c69c7ce5.png)
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2020-02-09更新
|
276次组卷
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3卷引用:重庆市第八中学2018-2019学年高二下学期期末考试数学(理)试题
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6 . 已知
,满足
.
(1)求证:
;
(2)现推广:把
的分子改为另一个大于1的正整数
,使
对任意
恒成立,试写出一个
,并证明之;
(3)现换个角度推广:正整数
满足什么条件时,不等式
对任意
恒成立,试写出条件并证明之.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3aec1994a01be9e9335a62177131ee4.png)
(2)现推广:把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32df45c5ee591bb2b763deacb26110c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942932aac23ed64c833aacaae02e66bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(3)现换个角度推广:正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b72c9d613a2c88e73a7451210b7a98a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3823cef58d924746e16b32155e3bc16d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
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2020-01-31更新
|
284次组卷
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4卷引用:上海市七宝中学2017-2018学年高一上学期期中数学试题
上海市七宝中学2017-2018学年高一上学期期中数学试题(已下线)上海市复旦大学附属中学2014-2015学年高一上学期期中数学试题(已下线)专题21+期中复习-2020-2021学年新教材高一数学秋季辅导讲义(沪教2020)上海市七宝中学2021-2022学年高一上学期10月月考数学试题
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7 . 已知函数
的单调递增区间为
.
(Ⅰ)求不等式
的解集
;
(Ⅱ)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcc29b78b8c0c767f5c76aac03537a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a2fd8a1544c5e16a6762bf799af9210.png)
(Ⅰ)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899ec88b70ae3e43756f488d3033db78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2b85186925658e66d8541a5645269e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b65c41c49649ae0b956c4b314c90f5fe.png)
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2020-01-31更新
|
469次组卷
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5卷引用:2020届广东省华南师大附中、实验中学、广雅中学、深圳中学高三上学期期末联考文科数学
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8 . (1)已知
,求证:
.
(2)已知
,求证:
在定义域内是单调递减函数;
(3)在(2)的条件下,求集合
的子集个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df8babf018f42b32990f65768ed81ef5.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ea5e39c4f2025dbd80d8629c6b71e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)在(2)的条件下,求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3fd56c0a0ba232750157d2241284959.png)
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2020-01-16更新
|
235次组卷
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5卷引用:上海市七宝中学2017-2018学年高二上学期开学考试数学试题
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9 . 若实数
,
,
满足
,则称
比
接近
.
(Ⅰ)若
比
接近
,求
的取值范围;
(Ⅱ)已知
,
且
,求证:
比
接近0.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b2f36a11b3ee72115629252bcdbe61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1d2e5599453f8d4c04369bc8f79962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(Ⅱ)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42e18df3b4e9522029a9310c5890d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099114025abd0c8ea7f2466209612ed1.png)
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10 . 已知
,
,
为一个三角形的三边长.证明:
(1)
;
(2)
.
![](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/071a7e733d466949ac935b4b8ee8d183.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227120dd656502adb6f4ebd80ce8096f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e62132a01a439422c794670c1f8ed11.png)
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2019-12-13更新
|
1513次组卷
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5卷引用:2019年12月河南省开封市一模数学(文)试题