名校
1 . 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
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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
2 . 已知函数
,已知不等式
恒成立.
(1)求
的最大值
;
(2)设
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ffc77a665e9cb7aabc960cf97e4261e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae74bca9229ee4eb2515ec6c1f38165.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed1e9cdd5a82f29ec89b2c53b4fa6f8.png)
(2)设
![](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/1c6b4261bbdcd692d944fc1e5c8e7a82.png)
您最近一年使用:0次
2022-05-16更新
|
1151次组卷
|
4卷引用:江西省南昌市2022届高三第三次模拟测试数学(文)试题
2020·全国·模拟预测
解题方法
3 . 已知函数
,
,不等式
的解集为
.
(1)求
的值;
(2)若正数
,
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d9ef2a3f27e25140d8fe8384f40f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18eae5fdfcf1dab2e70e73869a1ce5c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1dfc3b2304232eb17ea77b34a4aab7e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
(2)若正数
![](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/6e55250c6c4671fd35f50519198dd8d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c459074e1995c7bc3edf880063b5825a.png)
您最近一年使用:0次
名校
4 . 已知函数
,集合
.
(1)求集合
;
(2)若实数
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa2a98a65d77adaab10b547fdd00c7eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a25aa8902a4b03e97679305a2560b58.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0f4e4421b63f3eede74bc81b35edee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6098896f200fd6c88ca8d6c6abd413c0.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)设
,
,
为正数,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a661188c69d176b8df407fd44771e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e9dd22e52aae0394d8df8d7e060930.png)
(2)设
![](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/86c3d3ceb3277a14c1be51e0d1e072c5.png)
您最近一年使用:0次
2020-03-16更新
|
432次组卷
|
4卷引用:2019届湖北省黄冈中学高三三诊理科数学试题
解题方法
6 . 已知函数
的最小值为
.
(1)求实数
的值;
(2)若
,设
且满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8155134413c6104a94ed047e934eeeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a1007082d08803d3cb9de108039401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d812643e080d4d447fab7fe2ae2646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c3f311c21d1f216d19f0d50b37e858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27877a392b2c66f618e809674a0fa2db.png)
您最近一年使用:0次
2019-04-03更新
|
365次组卷
|
5卷引用:【市级联考】宁夏银川市2019年高三下学期质量检测文科数学试题
名校
7 . 选修4-5:不等式选讲
设函数
.
(I)当
时,解不等式
;
(II)若
的解集为
,
(
,
),求证:
.
设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89514664fd8b09ebcda46e8b4d61252f.png)
(I)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acff98078cdd32804d8f1c4efbe2ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15122eaf24b71837566f917326709a0d.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256f3981024e53f373a80aad40e994ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d720b695a701ea5c5c7b09f89100b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/468de6064c5338284a03470e11d57856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6b88ebba33b7b994577161c0710493.png)
您最近一年使用:0次
2018-04-20更新
|
345次组卷
|
3卷引用:新疆维吾尔自治区2018届高三第二次适应性(模拟)检测数学(理)试题
名校
8 . 设函数
,
.
(1)解不等式
;
(2)对于实数
,若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd65345dec765bd06d1d9e7e8900a67e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54856c5b520d9851388ea9618d93128.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe1eabda07e76bfa611ec07bf8f27909.png)
(2)对于实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39ad35c04ec62f70e4b57ea41ea35ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf49ac6ace1acd6cc1f7ff14611634a0.png)
您最近一年使用:0次
2018-02-01更新
|
333次组卷
|
3卷引用:宁夏银川一中2018届高三第六次月考数学(文)试题