名校
1 . 已知
,
,
.
(1)记函数
,求函数
取最大值时
的取值范围;
(2)求证:
与
不平行;
(3)设
的三边
、
、
满足
,且边
所对应的角为
,关于
的方程
有且仅有一个实根,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3cbfc36c535fd54311d7e7be39a82be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd351d64a36474ff8f3f1eb64ac5d519.png)
(1)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c25f1d401fe5fd8748bb7c89751493b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82a12f606ee2ee9ee7eff1f805852ac.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/988b7e964e313579ab8869d67d5be007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d28b3145d1fd20a4ab20d9a90fb9c511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2021-07-19更新
|
449次组卷
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4卷引用:上海市川沙中学2022-2023学年高二上学期开学考试数学试题
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名校
解题方法
2 . 已知函数
(
为常数,
).给你四个函数:①
;②
;③
;④
.
(1)当
时,求不等式
的解集;
(2)求函数
的最小值;
(3)在给你的四个函数中,请选择一个函数(不需写出选择过程和理由),该函数记为
,
满足条件:存在实数a,使得关于x的不等式
的解集为
,其中常数s,
,且
.对选择的
和任意
,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6614379cd63faabd1da220c786cdbedc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed15349f471493af902464777d039c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83739143c0e0731300d209a4133b5caf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd29509d5c3748c531b763bcce57bbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3eee64da102a73908b77346ab02e53.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63a4980e68a0e06cea46e3fdda16c21.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcd1b1911b9a9ae60c0ddd71eda33c7.png)
(3)在给你的四个函数中,请选择一个函数(不需写出选择过程和理由),该函数记为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cccb60908bbc616106e008e09acfd40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f18667bdb7b35b23e1cdaaaf4f52f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995ec593baa4ef50b6d87c78380953d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1419108104429f6df5d5352a05211e36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095c5f7a3c6917839c01fd1e5654ee91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cccb60908bbc616106e008e09acfd40.png)
您最近一年使用:0次
2020-02-17更新
|
795次组卷
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3卷引用:江苏省苏州市高新区第一中学2020-2021学年高二上学期期初数学试题
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