名校
1 . 已知函数
.
(1)求关于
的不等式
的解集,
(2)若对任意的正实数
,存在
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caea10925751747f3c862c4ab7c95db4.png)
(1)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd06b4f4a794e4fa62d3580066003727.png)
(2)若对任意的正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ad23d93c0e20425a3a7f3a8605a61d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691d1f53d989eb13e2599fedfc746c01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-11-20更新
|
355次组卷
|
2卷引用:江苏省常州高级中学2023-2024学年高一上学期期中质量检测数学试题
名校
解题方法
2 . 已知函数
,其中
为常数.
(1)当
时,解不等式
的解集;
(2)当
时,写出函数
的单调区间;
(3)若在
上存在
个不同的实数
,
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db58afeac1cfe83233a8887e16f59b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940adbf54e96ecb2bb2637e5f976a3b0.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(3)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e946baf1316ac1f219398ecedadf6cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c84367e55e896aee2b24cb90a9ba829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5341c6040416a2bc0732121a35918d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02b2a2459a73f0fdee1247ae6d3ac30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-11-17更新
|
302次组卷
|
2卷引用:湖北省十堰市示范高中教联体测评联盟2023-2024学年高一上学期11月联考数学试题
3 . 定义一种新的运算“
”:
,都有
.
(1)对于任意实数a,b,c,试判断
与
的大小关系;
(2)若关于x的不等式
的解集中的整数恰有3个,求实数a的取值范围;
(3)已知函数
,
,若对任意的
,总存在
,使得
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2671f593186fa00f17ad26eba7b8f3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a8c23336002eb5d7c478479fcda799f.png)
(1)对于任意实数a,b,c,试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fda9c56c7993236c0ebdfe08d110ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98e8a20e1e3d328265269df6b2927ad.png)
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80fef6a2dd7e822d83ae45ea79a5357.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fc1f7733bebb86885b6e6fd0534e1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8b60555f0d82c386c5b935c23ff952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12965bbc260bdbb0df0a110e59fb8d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93bf66ef253242900ca1702121238b14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52dc0bb1b1d25a0e86babc0edc627e44.png)
您最近一年使用:0次
2023-07-11更新
|
526次组卷
|
3卷引用:山东省青岛市莱西市2022-2023学年高二下学期期末数学试题
名校
解题方法
4 . 设
,
,函数
.
(1)求不等式
的解集;
(2)若
在
上的最大值为
,求
的取值范围;
(3)当
时,对任意的正实数
,
,不等式
恒成立,求
的最大值.
![](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/d2a1a2c7a6e7d5c91db7488bc019195d.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b99d9d6a6d6f049db4e37f2070747db.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe458dacd95f24540bdaaa5e5506a3e.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/7d5358578eb1f0091bcaca8fd6653ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
5 . 已知函数
.
(1)用定义法证明
在
上单调递增;
(2)求不等式
的解集;
(3)若
,对
使不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e376c842a2c9d28900db4c9e3751c8b4.png)
(1)用定义法证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f818fd291d9238aba022086ebc5fc8.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f87015fc71bfb1c5d0bab42e19e08da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8baf62fb1df09295e1e1e0e32d50218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75903e4c69e44a0ca5b2f0505e02b8a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-02-15更新
|
532次组卷
|
4卷引用:陕西省渭南市大荔县2022-2023学年高一上学期期末数学试题(人教A版)
陕西省渭南市大荔县2022-2023学年高一上学期期末数学试题(人教A版)陕西省渭南市大荔县2022-2023学年高一上学期期末数学试题(北师大版)(已下线)专题11 对数及对数函数压轴题-【常考压轴题】广东省揭阳市揭东区2023-2024学年高二上学期期中数字试题
名校
6 . 已知函数
.
(1)若
,求不等式
的解集;
(2)当函数
恰有两个零点时,求
的值;
(3)若对于一切
,不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d66a46bd318a89e1cd8aff797cf9493f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(2)当函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee74589d2315942a29327b8397482530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若对于一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.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 . 已知函数
,且不等式
的解集为
.
(1)求实数
的值;
(2)解关于
的不等式
(其中
为常数);
(3)已知
,若存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5fc45206a4d4546812fa0e1095a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b1ade690fc8c639b15f7c6ebed814a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb21dab71cb58659fcb235a76fa52296.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9e628e13c64e04b41fe20f754ef4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08da39fad4c547b601d2e8c8abcebc60.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4801e06090648bd73b1782d8156d4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda73c1e0578290dcd50e101aed41523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6854813c6c6289f1a56f9ea9a45a023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
8 . 已知函数
定义域为
,
.
(1)求关于
的不等式
的解集;
(2)若存在两不相等的实数
,使
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362bfce584209628bc4ad3f23e3d7b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761c38bcca04fdb9b99817635f8e10f3.png)
(1)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d160351bbd4906644ff0a7ece07595f.png)
(2)若存在两不相等的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0777bb66e22131bcdff0b722b7731cc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c173412f52d1f857bde4116a9a72bb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2022-12-24更新
|
437次组卷
|
2卷引用:湖北省武昌实验中学2022-2023学年高一上学期12 月月考数学试题
名校
解题方法
9 . 已知函数
.
(1)当
时,求
的值;
(2)当
时,求不等式
的解集;
(3)当
时,若对任意的
,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff10f989aa387be79100379a4df46688.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1983d0cad49a9180243947536fa33fb7.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0abe4960954bb3144b7e86d4233e747.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48350c9f896c18a64f27867ca81c9be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85872073deea71081ce367e48b3b872.png)
您最近一年使用:0次
名校
解题方法
10 . 若函数
.
(1)讨论
的解集;
(2)若
时,总
,对
,使得
恒成立,求实数b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35dc0ca67e1fd3beacb371e109242fee.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960e8005fa2182ca5e7230803a2fe21c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f9bc29b0fe179ca26277d3fcc79fd0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7bea88c5add9709492c0a4e1d54ffe.png)
您最近一年使用:0次
2023-03-17更新
|
568次组卷
|
8卷引用:四川省平昌中学2022-2023学年高一上学期第二次月考数学试题