名校
1 . 已知
,则
的大小关系为 _________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f4d61c1c1b8c28a8eae4913e5c46e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
您最近一年使用:0次
名校
解题方法
2 . 已知代数式
和
.
(1)若
,求不等式
的解集;
(2)若
,证明:
、
中至少有一个数不小于
;
(3)若
,不等式
对任意实数
恒成立,试确定实数
、
满足的条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/746ccb35a4109e9b8e5de87f4ba7493a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884c3f47ccd7d3a2807f2d6b5cbb1c87.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a601b6112fbde7acad9ad0df5c1ab94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c5c427ad83ed2b2988005eaf27d7c8a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e76fa77d1b0bc4c1af9c8c41bf0dabe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/746ccb35a4109e9b8e5de87f4ba7493a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884c3f47ccd7d3a2807f2d6b5cbb1c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9628e46f99dce96288779420e458e7b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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
名校
3 . 已知
的最小值为
,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2645d8fdd116dc41d8f8581349b2942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
4 . 已知不等式
的解集是
,不等式
的解集是
.
(1)求
;
(2)若关于
的不等式
的解集是
,求
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e011b337fdb8459ca5006b772136c039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c111a03a88d0635659cc3fb347c09d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8023e1902803a7939d2aa32ba9e2d44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33422dedd592fa9687d1ae7a53b3ca1a.png)
您最近一年使用:0次
解题方法
5 . 已知函数
.
(1)求不等式
的解集;
(2)若
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5777e2a8bd8a10cd04435a009833d368.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a8a9f4f0d6590de86becb733bd1b6b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ce356da01c9e91f6ea6d5a73df340d.png)
您最近一年使用:0次
2023-01-11更新
|
88次组卷
|
2卷引用:陕西省安康市白河高级中学实验班2021-2022学年高二上学期期末理科数学试题
6 . 已知函数
.
(1)求不等式
的解集;
(2)若
对任意实数
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a7809ee1fb390e90806aba2ad66453.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8901f2d5436cdf628a42924fc1e8f06d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b79c764caf26098a797bdaa5d2f7db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-01-10更新
|
101次组卷
|
3卷引用:陕西省汉中市2021-2022学年高三上学期第四次校际联考理科数学试题
陕西省汉中市2021-2022学年高三上学期第四次校际联考理科数学试题陕西省汉中市2021-2022学年高三上学期第四次校际联考文科数学试题(已下线)安徽省江南十校2022届高三下学期3月一模理科数学试题变式题21-23
名校
解题方法
7 . 记代数式
.
(1)当
时,求使代数式
有意义的实数
的集合;
(2)对任意
,代数式
均有意义,求实数
的取值范围;
(3)若存在实数
使得代数式
有意义,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928f71ac3feb287e4d6cf3ceb658952e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae0f8520349250a31be6d58542ef2d9.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
8 . 已知数列
的前n项和为
,且
.
(1)求
的通项公式;
(2)求证
时,不等式
成立
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb7d2d5c0e684bba3a14002fca76f40a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13e8557bd9fc71d38c403283843b48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c14f0220359ead94f73ba08d5988f9.png)
您最近一年使用:0次
名校
9 . 已知函数
.
(1)求不等式
的解集;
(2)设
的最小值为
.若正实数
满足
, 求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83885a8e289d2f6d47ae4c6d65472761.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2677d8cb044df55cbca3c905c286a952.png)
(2)设
![](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/2d5c224e4f6797cb2dcf1b93b800d339.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c321b3d7476442ac8aabc81a553a72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f4c95657bb03a80a2c24301a74a2fed.png)
您最近一年使用:0次
2022-12-26更新
|
375次组卷
|
5卷引用:四川省成都市2021-2022学年高三第一次诊断性检测理科数学试题
名校
解题方法
10 . 已知函数
.
(1)求不等式
的解集;
(2)若不等式
的解集为非空集合,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b4377667e6253518808966ee836e23.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207bbd421da70fa380b9ea51b1951e03.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45113afebfc2bd37e7bc6bea74a4bc92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次