名校
解题方法
1 . 已知不等式
恒成立,正数m的最小值为M.
(1)求M;
(2)若正数a,b,c满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2a689c0cf86aa8a5232e491a78db2a.png)
(1)求M;
(2)若正数a,b,c满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2a6407ea1cc0b25c2a78a5aba2df47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d1926f314c9199b4bf490da60462fc.png)
您最近一年使用:0次
名校
解题方法
2 . 设函数
.
(1)当
时,求不等式
的解集;
(2)若
,
,
的最小值为
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9928170ed70b7185a19b8b123b749955.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfe680e7333cc33b5a799f499fff7c56.png)
(2)若
![](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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf113499ea01e353379f293cfe79bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f952af1c30f32ee1c94333c16c003d3.png)
您最近一年使用:0次
2023-09-02更新
|
333次组卷
|
5卷引用:百师联盟(陕西省西安市部分学校)2024届高三上学期开学摸底联考理科数学试题(全国卷)
解题方法
3 . 已知函数
.
(1)画出
的图象;
(2)若函数
的最小值为m,x,y,
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd95b79f0d36b83f348ae730ba3c4a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/7/d3d9876a-a4a1-4b67-a6af-dfcaf7d4245c.png?resizew=175)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7e635200cb19c4730160bb359f5f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9840dfad60acd1cb4198270481849b0.png)
您最近一年使用:0次
2023-08-04更新
|
82次组卷
|
2卷引用:江西省赣州市兴国县2023届高三高考考前最后一卷(全国乙卷)数学(理)试题
名校
解题方法
4 . 已知
、
、
都是正实数.
(1)求证:
;
(2)若
,求证:
.
![](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)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718baee4ebadc334bb21aa4898ee72b9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e4b197a779a73068930151f9bbc5c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c7104c76550301474c1f115958ef8a.png)
您最近一年使用:0次
名校
解题方法
5 . 已知函数
.
(1)求不等式
的解集;
(2)已知a,b为正实数,证明:关于x的不等式
的解集为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5487f615f60ea4af926cafd404190c90.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/502416314c8c26f8442e639ea6a5db13.png)
(2)已知a,b为正实数,证明:关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d47dbfa832448e90e2848a354dc13c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
您最近一年使用:0次
2023-06-23更新
|
103次组卷
|
3卷引用:河南省许平汝名校考前定位2023届高三三模理数试题
2023高三·全国·专题练习
6 . 若实数
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/605df53a471a25710646ec792083b714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea035bf18068f4d91f9c9bae8764fd5d.png)
您最近一年使用:0次
2023高三·全国·专题练习
7 . (1)已知实数
,
,
满足
,
,则
的最大值是________ ;
(2)对于
,当非零实数
,
满足
,且使
最大时,
的最小值为________ .
![](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/9e56f4504e0f80fd031c8b5f41832e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f9223bc24df8d429d743692fff7c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](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/d0928f6318bbc075ba006638646f4403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dd633c8b370658878f9fc35a7a8877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f9a74d1fb37b9b59e181ecb0a7f72ff.png)
您最近一年使用:0次
名校
解题方法
8 . 设函数
.
(1)求不等式
的解集;
(2)记函数
的最小值为
,正实数
,
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b34911d2efeb8ebde881d918379ceb.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc901cbdb68130ddac3174583dd93c.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](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/ab04de6651256f6281e9f4c1dc3c7955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080ccdabf1336987dc4711d2fa8451fc.png)
您最近一年使用:0次
2023-06-09更新
|
204次组卷
|
2卷引用:江西省贵溪市实验中学2023届高三第三次模拟考试数学(理)试题
名校
解题方法
9 . 已知函数
的零点为
,且
,其中
,
,
.
(1)求
的最小值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2993cfbcef916c847b9809c960bd38f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7707af549293fd1f39f00082b9a35c.png)
![](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/383c2dd19c49061b5e31f1df53419a09.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b30e834f617e546d3d72ab488344f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25840915299534473faaada6bc8e93e2.png)
您最近一年使用:0次
2023-06-06更新
|
186次组卷
|
2卷引用:河南省创新发展联盟大联考2023届高三预测数学(理科)试题
名校
10 . 已知函数
的最小值是
.
(1)求
;
(2)若正数a,b,c满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56405ef7b21d30e9505c7937c1962ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若正数a,b,c满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73932db6f5b35b4b48e7cffae11ab12b.png)
您最近一年使用:0次
2023-06-02更新
|
461次组卷
|
4卷引用:陕西省西北工业大学附属中学2023届高三下学期第十三次适应性训练文科数学试题