名校
1 . 已知正实数
,
,
,且
,
,
,
为自然数,则满足
恒成立的
,
,
可以是( )
![](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/ce613eaa5df46a50174085ef5d1087fb.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/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7204ebb165d62bf4121ce3ae1b4406.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/e81e59019989b7dc2fb59b037ef6e010.png)
A.![]() ![]() ![]() | B.![]() ![]() ![]() |
C.![]() ![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
2024-05-19更新
|
1753次组卷
|
3卷引用:压轴题03不等式压轴题13题型汇总 -1
2024高三·全国·专题练习
解题方法
2 . 设正实数
满足
,不等式
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17af70b4ef026cf1befcff68ee0f8d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327870e3d1169f3d08a5975509aaf32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024高三下·全国·专题练习
3 . 求使
(
,
)恒成立的a的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058aff05e99032aafdc782b1a9dc7a2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
您最近一年使用:0次
2024高三·全国·专题练习
解题方法
4 . 已知正数
满足
,若不等式
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f00f997ae12c30f551adb834e1d7ef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7be061abf14bc6b6872f66f5d2893df1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
5 . 已知正数x,y满足
,若不等式
恒成立,则实数a的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4611011375960ede327251150729f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc5472b1e6f9c58ab7f641cf42b98457.png)
您最近一年使用:0次
2024高三·全国·专题练习
名校
解题方法
6 . 已知关于
的不等式
的解集为
或
.
(1)求
,
的值;
(2)当
,
且满足
时,有
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9deeb02676b13db2735699803f8c601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20c78ad990e2424f4ece6a926e17bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d5c65d76b90bafe1a009ef1693af2f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953521e0c0ec1c417d7ca2197d8c601e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c36cdb03a872a89374ead035774d493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2024-03-08更新
|
452次组卷
|
3卷引用:模块一 基础知识(集合、常用逻辑用语、不等式、复数)(测试)
(已下线)模块一 基础知识(集合、常用逻辑用语、不等式、复数)(测试)辽宁省七校2023-2024学年高一下学期期初考试数学试卷 吉林省延边朝鲜族自治州延边第二中学2023-2024学年高一上学期第一次阶段检测数学试卷
名校
解题方法
7 . 设实数x,y满足
,
,不等式
恒成立,则实数k的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c40e32586702d7955a5d9be83da9c9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241cf97a1aa2d6ed054ef82c1b5d369e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7498c087340adfc339d157ae82db5267.png)
A.12 | B.24 | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-29更新
|
2540次组卷
|
6卷引用:微考点1-1 新高考新试卷结构中不等式压轴4大考点总结
(已下线)微考点1-1 新高考新试卷结构中不等式压轴4大考点总结(已下线)新题型01 新高考新结构二十一大考点汇总-2(已下线)压轴题03不等式压轴题13题型汇总-2浙江省宁波市镇海中学2024届高三上学期期末数学试题江苏省常州市前黄高级中学2024届高三下学期一模适应性考试数学试题(已下线)浙江省宁波市鄞州中学2023-2024学年高二下学期期中考试数学试题
名校
解题方法
8 . 对任意实数,不等式
恒成立,则实数
的最大值( )
A.2 | B.4 | C.![]() | D.![]() |
您最近一年使用:0次
2023高三·全国·专题练习
解题方法
9 . 已知函数
有两个零点
,
(
),求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed8b498777787371de65159bd614e3f.png)
![](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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbdaa3d76d186bdd3435d949a6a4f8a0.png)
您最近一年使用:0次
2023高三·全国·专题练习
名校
10 . 若正实数
满足
,且
恒成立,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45900deae0489e87fe448948e8091c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127fc61e6a5059e15628a7dfdd752829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次