解题方法
1 . 已知不等式
的解集为
.
(1)求集合
;
(2)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4240c04b28056b508ffa98c63045ddd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2b85186925658e66d8541a5645269e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31049a3201931a201450149c68a5db8.png)
您最近一年使用:0次
2020-03-12更新
|
105次组卷
|
2卷引用:江西省九江市2017-2018学年高二下学期期末考试数学(理)试题
2 . 已知
,函数
.
(1)若
,求函数
的最小值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebac130045160b7cc1d76aadcb1d372a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb94e5053decf14ab60f307499aaa79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c582e765550902ce40e5ea3df432d3.png)
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2020-02-27更新
|
300次组卷
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2卷引用:2020届广东省清远市高三上学期期末教学质量检测数学(理)试题
3 . 已知
,函数
.
(1)若
,
,求函数
的最小值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc7a12881357035d59f2c1039daadd3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ea2fe6d047bc6d2c13ff4d397e8508.png)
您最近一年使用:0次
2020-02-27更新
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2卷引用:2020届广东省深圳市罗湖区高三上学期期末质量检测数学理科试题
名校
4 . 已知函数
.
(1)当
时,证明:
;
(2)若
的值域为
,且
,解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47bfdff4d543b742e29465ef177315e0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca27cc54ca0332245f5167488daa3408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94cc25a7cf28ed096549fbae97fce40a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e0400d730672ae2110ff48786dd1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0585b5ae4678e0f500044f1d931c465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665dc334a37e61c356b636604eb0f8c3.png)
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2020-02-09更新
|
252次组卷
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4卷引用:2020届重庆市第一中学高三上学期期末考试数学(文)试题
解题方法
5 . 已知函数
.
(1)求
的最大值
;
(2)若
且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77dc970574220f8ca0356bfab52c53d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4796ea9a2612ae5989650beea4a9543f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab04de6651256f6281e9f4c1dc3c7955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9eb1bf889edbd8a221c785573f87086.png)
您最近一年使用:0次
6 . 已知函数
.
(I)求
的最小值
;
(II)若
均为正实数,且满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c4a13a6acfb6fee85dd74877a50b6c.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(II)若
![](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/2219d312e275702451d6323cd3e7ac67.png)
您最近一年使用:0次
7 . 已知函数
,且
恒成立.
(1)求
的值;
(2)当
时,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b14b43859686398fbbe87250970fa39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfbe2eb6c502d3d304bbe3c95b54061.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/508c4662e190f6b9ec185c05e377d035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6e27e9eb7e855fd1c977305a87fac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9aae9ca719da83c53109a65ecfa3ec.png)
您最近一年使用:0次
2019-06-28更新
|
414次组卷
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5卷引用:四川省泸州市泸县第一中学2019-2020学年高三上学期期末考试数学(理)试题
四川省泸州市泸县第一中学2019-2020学年高三上学期期末考试数学(理)试题四川省泸州市泸县第一中学2019-2020学年高三上学期期末考试数学(文)试题2019年湖南省怀化市高三二模数学(理)试题【市级联考】湖南省怀化市2019届高三统一模拟考试(二)数学(文)试题(已下线)专题06 等式与不等式-【备战高考】2021年高三数学高考复习刷题宝典(解答题专练)
8 . 已知函数
.
(1)证明:
;
(2)当
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9268a13a72eacb0d59358249667be1cc.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2608a57caffde627dbf140ca22a2ff8a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e96cc112a53421f3e85f4b59f29d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2020-01-13更新
|
358次组卷
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8卷引用:福建省泉州市2019-2020学年高三上学期期末质检文数学试题
名校
9 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ebfef550eec07598671c5929259780.png)
(1)若
,求不等式
的解集;
(2)若函数
为偶函数,此时
的最小值为t,若实数a,b,c满足
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624461bef21a0afc8417de01779053d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ebfef550eec07598671c5929259780.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eeae3d0886ea80770248bf577737c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5143836462d67c7764fec4b0a6b4f820.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc52bfa6560b97109548a6a7d29deb33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125070d1efe0732ca39e5dcedf49d22c.png)
您最近一年使用:0次
2020-01-02更新
|
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2卷引用:辽宁省丹东市凤城市第一中学2019-2020学年高三上学期第一次月考数学(理)试题
名校
10 . 已知函数
.
(1)求函数
的最小值
;
(2)若正实数
,
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d53bb5e14f7f001900d142e13e6b2d7.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若正实数
![](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/50d740b6da22bede219b13f233ad6e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db61a4287c7c0c47f89adaefaa5f6f6.png)
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2019-12-30更新
|
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3卷引用:湖北省武汉市2019-2020学年高三上学期11月综合测试(二)理科数学试题