解题方法
1 . 已知函数
.
(1)若对任意
,使得
恒成立,求
的取值范围;
(2)令
的最小值为
.若正数
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87cc815b7088da109c05b85fe342281.png)
(1)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/847f4ef4685adab7f5a4fc1c23059437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860aea1b2f2c1b861d83c1499f5093ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8505d86fda3d979f87e2f990fbd12ea.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
,函数
.
(1)当
时,解不等式
;
(2)若
的最小值为2,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4490503c29b1743ca34b05e900d8730.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b562ca77fa64f3ebe40e0ad49833d5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8697fe84b93e6cac74847d6a44771a02.png)
您最近一年使用:0次
2024-04-18更新
|
318次组卷
|
4卷引用:陕西省安康市高新中学、安康中学高新分校2023-2024学年高三阶段性测试(八)理科数学试题
陕西省安康市高新中学、安康中学高新分校2023-2024学年高三阶段性测试(八)理科数学试题陕西省西安市第一中学校2024届高三阶段性测试(八)理科数学试题陕西省西安市第一中学等校2023-2024学年高三下学期4月阶段性测试文科数学试题(已下线)四川省成都市外国语学校2024届高三高考模拟(五)理科数学试题
名校
3 . 已知函数
,其中
.
(1)当
时,求不等式
的解集;
(2)若对任意的
恒成立时m的最小值为t,且正实数a,b满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2379c1c2d0e095625f77f7883003df7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975af98526d943ccd1ab7b9f0e022374.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624070d66d05a0f5244648e5d1cffe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0fd3296a0ecf275a161134518dba8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b0e403c5f00d0357d3fa30d6c2717c.png)
您最近一年使用:0次
2024-04-16更新
|
342次组卷
|
3卷引用:宁夏银川市、石嘴山市2024届普通高中学科教学质量检测理科数学试题
解题方法
4 . 已知函数
.
(1)求
的解集;
(2)记
的最大值为
,
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b43cb607065d8ffb44a5cc7352b8738.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990d3feee85e869ea9ab561ff63d46a2.png)
(2)记
![](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/8a42fff822c5f61fec5fcd5c8e86941e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b398c9b50bc83eaf7a58168dd91c02f3.png)
您最近一年使用:0次
2024-02-28更新
|
78次组卷
|
2卷引用:1号卷·2022年高考最新原创信息试卷(一)理数
名校
解题方法
5 . 已知
.
(1)若
,解不等式
;
(2)当
(
)时,
的最小值为3,若正数
、
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea5de196c8ac3eaf27d376164718f41.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b4d04800acca6ef5a8696befee0ece.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f31c8a4f1cab92254d60217b85013a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404a00bf430f0f1a0fadc3130b79cb23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7665f6fc755673a94df20bb66c694013.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
.
(1)求不等式
的解集;
(2)若函数
的最小值为
,且正数
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4aac5487f0cd46559e938ff98a5cfc.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04bbcc3eb28e550b30e7ba6eaa09fe8f.png)
(2)若函数
![](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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a3cfe361051dc5e9a3a36b2818db0.png)
您最近一年使用:0次
2024-05-04更新
|
378次组卷
|
4卷引用:青海省西宁市大通县2024届高三第二次模拟考试数学(文)试题
名校
解题方法
7 . 已知函数
,实数
满足
.
(1)解不等式
;
(2)证明:对任意实数
,使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41704e782a18e4fc47cda11f4df5c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6fae71c162e7be027a9b30a9187813.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a075dce77c9a6b964a8a3fc1ee6e8c.png)
(2)证明:对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a246b114e01128ed13a7d0798775d205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2fa1502128fd34965a4a370f1eaed4.png)
您最近一年使用:0次
2024-06-14更新
|
155次组卷
|
2卷引用:陕西省西安市第一中学2024届高三下学期高考预测数学(文科)试题
8 . 已知函数
.
(1)当
时,解不等式
;
(2)若
,且函数
的最小值为5,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4715741fb928a604a95d692061a60bb.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55126d3db5710b3b8a6293157261a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253a485de0d7cf96458810db8d5affe6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b431c226d36493acba8ea2d28e9bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b626488a86a56e8d203f0bee60af7829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c14cdaa17fe248c74096dcc8011f2d6.png)
您最近一年使用:0次
名校
解题方法
9 . 对于两个实数
,
,规定
,
(1)证明:关于
的不等式
解集为
;
(2)若关于
的不等式
的解集非空,求实数
的取值范围;
(3)设关于
的不等式
的解集为
,试探究是否存在自然数
,使得不等式
与
的解集都包含于
,若不存在,请说明理由,若存在,请求出满足条件的
的所有值.
![](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/9f4511ddd731101f31a812687f876d3d.png)
(1)证明:关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4467d44e9a3a7faa7b86a258aeecd06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4d721dec802cd82c01d1ff1e9760c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc051b9ac95776718cbcb3f740931f5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/700fa4dfbe1d291042d435778db55f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7eca6a3e53f7e7b89c996322588a505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
10 . 已知函数
.
(1)求不等式
的解集;
(2)将函数
的图象与直线
围成图形的面积记为
,若正数
、
、
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b660752128ff0b0df562dea5482be4.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac390197ee10f748a4a8389e9110474a.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de72a5190834f5dbe895596656c038b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad8711304eb400a8a3ab0e7870a6b0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08a9af9f20b6007b211e69829fb9690.png)
您最近一年使用:0次
2024-01-24更新
|
128次组卷
|
2卷引用:内蒙古呼和浩特市2024届高三上学期学业质量监测数学(文)试题