解题方法
1 . 已知函数
,其中
.
(1)当
时,求
的最小值;
(2)若
的最小值为4,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7654983cf24cd00658a4ed6c5be8f11e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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
2 . 已知函数
.
(1)解不等式
.
(2)已知
,
,
的最大值
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4edb255b08f58b44c9febf040194f787.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a8a9f4f0d6590de86becb733bd1b6b.png)
(2)已知
![](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/a273197d49c017bda5be35536c1c5595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f35f52a876ae01a7fafd71c63f12834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
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2021-06-16更新
|
856次组卷
|
6卷引用:广西桂林市、崇左市2023届高三联考数学(理)模拟试题
广西桂林市、崇左市2023届高三联考数学(理)模拟试题黑龙江省佳木斯一中2021届高三下学期三模数学(文)试题黑龙江省佳木斯市第一中学2021届高三下学期三模数学(理)试题吉林省长春市第二实验中学2020-2021学年高二下学期期末数学(文)试题(已下线)专题13 不等式选讲-2021年高考真题和模拟题数学(理)专项汇编(全国通用)(已下线)专题23 不等式选讲-备战2022年高考数学(理)母题题源解密(全国乙卷)
3 . 已知函数
,
.
(1)若
的最小值为2,求实数
的值;
(2)若关于
的不等式
的解集为
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb40512cc30b26744c730858418364eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7715dc0398b04cda4eacb50298e21e5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f4aef678dab46159651148372e7cbe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ae199471fecbcf8ba7892204a5eb29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df7db728a8f4a0358f914d9d31f4033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-01-23更新
|
60次组卷
|
2卷引用:广西桂林市2021届高三第一次联合调研考试理科数学试题
4 . 选修4—5:不等式选讲
已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6fb92dc0ff7d9be62fe752d4cbad62e.png)
(Ⅰ)求
的最大值;
(Ⅱ)若关于x的不等式
有解,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6fb92dc0ff7d9be62fe752d4cbad62e.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984884ce7cd65e8d3dac77cd5682bb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2016-12-03更新
|
207次组卷
|
3卷引用:2015届广西桂林十八中高三上学期第四次月考理数学试卷
5 . 已知
,且
.
(Ⅰ)求
的最大值;
(Ⅱ)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/364d18c7009e307b1bea2e365d598ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be97cd1c7111b654d87d8fbb63b6a84.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
(Ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546965d452e9247212bda0a91aff0526.png)
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10-11高一·广西桂林·阶段练习
6 . 解关于
的不等式:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8256aa3776fb9f4d557c279317e368e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa81c2bdc9d4dfa3d747fc53e263b1d0.png)
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