名校
解题方法
1 . 已知
且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be08ee1528492fd899664eb1857000f4.png)
(2)求
的最小值,并求此时
与
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778a72f5f2de7f3ba705840f8357e79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be08ee1528492fd899664eb1857000f4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2021-11-09更新
|
189次组卷
|
3卷引用:江苏省苏州市2020-2021学年高一上学期期中数学试题
名校
解题方法
2 . 已知正实数x,y满足
.
(1)是否存在正实数x,y,使得
?若存在,求出x,y的值;若不存在,请说明理由.
(2)求证:
,并说明等号成立的条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbe0890043f34b4575bf7bb3a773e32b.png)
(1)是否存在正实数x,y,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6fa278b5d7c5d18734443a8bd75b3d3.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccec45a543380ce03701e625a5fd0451.png)
您最近一年使用:0次
2021-09-16更新
|
854次组卷
|
6卷引用:河北省正定中学2020-2021学年高一上学期第一次月考数学试题
河北省正定中学2020-2021学年高一上学期第一次月考数学试题广东省广州市第二中学2021-2022学年高一上学期第一次月考数学试题(已下线)第二章 一元二次函数、方程和不等式(章末测试)-【上好课】2021-2022学年高一数学同步备课系列(人教A版2019必修第一册)福建省华安县第一中学2022-2023学年高一上学期第一次月考数学试题河南省新乡县龙泉高级中学2021-2022学年高一上学期首月考数学试题福建省漳平第二中学2023-2024学年高一上学期第一次月考数学试题
2020高一·上海·专题练习
解题方法
3 . 已知a>0,b>0,且a+b=1
(1)求证:
;
(2)求证:
;
(3)求证 (a+
)(b+
)≥
.
![](https://img.xkw.com/dksih/QBM/2021/3/10/2674831894429696/2676371430359040/STEM/bcceeefe08514d2a876cf903371b67a3.png?resizew=2)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7d41fd3d684666aa501f0776dfa4841.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91d326e4306f2bb26b03e187857ac2e.png)
(3)求证 (a+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c70fcaa661df4fbcad820b439accda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9237dbe3a4f28962ef2870b4e7dab599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6c4a684e08d7a47b544929c449c054.png)
您最近一年使用:0次
名校
解题方法
4 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
(1)若
,求
的取值范围.
(2)求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6320fbdc13c4ab88cf8f577cce4001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
(2)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a161e6055e5f6a69f711792663f7a8b9.png)
您最近一年使用:0次
解题方法
5 . 已知正数
满足
.
(Ⅰ)若
,求
的取值范围;
(Ⅱ)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a57e060f61f7efa54982bda67db483a.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04959523a28786962d51cfb43a8767d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(Ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c1e85ac6cf72c81f63020ff377bc82.png)
您最近一年使用:0次
2020-08-16更新
|
566次组卷
|
2卷引用:河南省名校联盟基础年级联考2019-2020学年高二下学期期末考试数学(理)试题
名校
6 . (1)已知
,
,
均为正数,求证:
;
(2)已知正数
,
满足
,若
恒成立,求实数
的取值范围.
![](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/93efa3e1b9b9ece092b3e13e6e571724.png)
(2)已知正数
![](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/b45900deae0489e87fe448948e8091c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9036358d91efaecb286df5eeb36cf9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
7 . 已知抛物线
,点
是抛物线的准线与
轴的交点,过点
的动直线
交抛物线于
两点.
![](https://img.xkw.com/dksih/QBM/2020/7/30/2516897783357440/2517541045608448/STEM/2f22dc6f5e3644b38cd7032b37dd688f.png?resizew=148)
(1)求证:
,并求等号成立时的实数
的值;
(2)当
时,设分别以
,
(
为坐标原点)为直径的两圆相交于另一点
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8516f71467b419293fa27df70bdaed74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53aba796437b365b98f3d64ccf056643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://img.xkw.com/dksih/QBM/2020/7/30/2516897783357440/2517541045608448/STEM/2f22dc6f5e3644b38cd7032b37dd688f.png?resizew=148)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b62beda044e1fcdca92433e1bd9ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dea4187c7ed7003cad3bd720ac33e2f.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
,
.
(1)求证:
;
(2)若
,求ab的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680d9e974bc609c62d5e844222ea67a3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac53ae0cc414532c67c8f08fe540eead.png)
您最近一年使用:0次
2020-07-22更新
|
3140次组卷
|
10卷引用:黑龙江省哈尔滨市第三中学2019-2020学年高一下学期期末考试数学试卷
黑龙江省哈尔滨市第三中学2019-2020学年高一下学期期末考试数学试卷(已下线)第二章一元二次函数、方程和不等式章末综合检测-2020-2021学年高一数学课时同步练(新人教A版必修第一册)(已下线)专题2.1不等式及基本不等式(A卷基础篇)-2020-2021学年高一数学必修一同步单元AB卷(人教A版浙江专用)(已下线)期末测试卷(二)-2020-2021学年高一数学必修第一册单元提优卷(人教A版(2019))(已下线)专题12不等式的证明技巧的求解策略解题模板安徽省滁州市明光中学2020-2021学年高一上学期第一次月考数学试题第二章 等式与不等式【真题训练】-2020-2021学年高一数学单元复习(沪教版2020必修第一册)陕西省榆林市定边县第四中学2022-2023学年高一上学期第一次月考数学试题(已下线)重难点02 不等式(6种解题模型与方法)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)山西省晋中市博雅培文实验学校2023-2024学年高二上学期10月月考数学试题
名校
解题方法
9 . 设
,且
.
(1)证明:
;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8723316b610f1e42580d0916a4c58c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd24c686fbaaa68705d654b880481ffe.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfdfc0fcd4ab442aea1eb2a7d0bbdf9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26a1ca548618b66b8965f7abcfc78674.png)
您最近一年使用:0次
名校
解题方法
10 . (1)已知
,
都是正实数,
,求
的最小值;
(2)已知
,
,
都是正实数,证明:
.
![](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/bd617d5f4261e73da86ff6b095cf5229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
(2)已知
![](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/533937a08d1ed87594ac52c658be9649.png)
您最近一年使用:0次