解题方法
1 . 已知函数
是定义在
上的函数,且对于任意的实数
有
,当
时,
.
(1)求证:
在
上是增函数;
(2)若
,对任意的实数
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63f1bd2ff616d22caea21e8b74a843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25bea6d14c16f7c06e4e028f36131360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63f1bd2ff616d22caea21e8b74a843.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8167890072067743bfaa5ea345d52f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/630dc2e5aa255e1b1e0fcd9044618172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2016-12-04更新
|
570次组卷
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2卷引用:四川省雅安市天立集团2023-2024学年高一上学期期中数学试题
名校
2 . 求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de42abee62058f9595502b7d2953d1cd.png)
您最近一年使用:0次
2016-12-04更新
|
1032次组卷
|
4卷引用:四川省成都市锦江区嘉祥外国语高级中学2022-2023学年高一下学期期中数学试题
四川省成都市锦江区嘉祥外国语高级中学2022-2023学年高一下学期期中数学试题2015-2016学年吉林省实验中学高一上学期期末数学试卷人教A版 全能练习 必修4 第三章 第二节 第1课时三角函数式的化简与求值(已下线)第11讲 简单的三角恒等变换-【帮课堂】2021-2022学年高一数学同步精品讲义(人教A版2019必修第一册)
名校
3 . 定义在
上的函数
,对任意
,
,都有
,且
,当
时,
.
(1)证明:
在
上单调递减;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/193b90b218980dd666b2ca5a8ef1687a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](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/059e6342254858afcbe4cd78ebe8bf10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ed4485745f1d259a3953c242b9cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2180e18416d40abb243bd23984e7aba.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d179d11eb3c061c4d11256b8166272.png)
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名校
解题方法
4 . (1)已知
,比较
与
的大小;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a79d7f73b6128650bf7aed538260c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f77080e3e42298d09fb2bf199cd7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6933572874f9bf5d1e2dae8b147fc651.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e1e9c7dc7cb8fc10930a073beb34c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/036f6cec0247d9c26b5860e4474d0c50.png)
您最近一年使用:0次
2018-02-24更新
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2卷引用:四川省内江市内江市第一中学2023-2024学年高一上学期10月月考数学试题