1 . 已知实数a,b满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0936b6007792ccf9aa96af1cc7b1f0c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
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解题方法
2 . 某同学向老师请教一题:当
时,函数
图像恒在直线
的上方(不含该直线),求实数
的取值范围.老师告诉该同学:“
恒成立,当且仅当
时取等号.且方程
在
上有解”,根据老师的提示可得
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b00fb8a99de1be30d3c743f0c7ad6f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0852d49275f8774ba92620d8af490c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7423ff97ad12f080a829e19dd1dbe49d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
3 . 已知实数
,
满足
,则
的最小值是__________ .
![](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/9d5b348153da7b39bd95869d534f4f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28dc8fb2ef00c16567bfefeab15b2065.png)
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2023-11-10更新
|
989次组卷
|
2卷引用:浙江省绍兴市第一中学2023-2024学年高一上学期期中数学试题
4 . 已知
,且
,则
的大小关系为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8fc595163f6987c058cc136eac2cb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afc577edc9d1686048f9c220ef7b01c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13a05f5aca98574bb1f927123490de4.png)
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解题方法
5 . 已知函数
,若对任意
,当
时,总有
成立,则实数
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ff52439dde80656d934017cec20045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ffcc01616043a2077c48a3dec321b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fc75542a378f08334afdaf915686a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f196a0d170188c8cf3ad3f64cd2417aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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20-21高一上·江苏南通·阶段练习
解题方法
6 . 已知函数
,则使得不等式
成立的x的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f33d7423a203d3556a31386f86b9ab84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a04eff66f38de1a0c5365f4c6c0ca0.png)
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7 . 定义函数
,若存在常数M,对于任意
,存在唯一的
,使得
,则称函数
在I上的“均值”为M,已知
,则函数
在
上的“均值”为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afd57a02ee688d7e8bdbc6de7342387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492ad223929663945c3308099241d64a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7d1d5b0d1d62c83386d87825f789e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cecd441b7cd298c9cceb5c5ae529398c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b1bb972e80f8d949fbda8c28e8d67f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce427e97019745d570dd2728027fba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73aea06e871a85a5048b59066eac2709.png)
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