已知函数
.
(1)判断
的单调性和奇偶性并简答说明理由;
(2)若
对任意
恒成立,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91e640c11335a1c6f50e7143876adc6.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7e4368c1c20c95caa06959cd2250ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
更新时间:2022-11-01 09:24:52
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【推荐1】已知函数
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(1)证明:函数
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(2)若不等式
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(1)证明:函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)若不等式
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【推荐2】已知奇函数
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(2)判断函数
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(3)若实数
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(2)判断函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
(3)若实数
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【推荐3】已知函数
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(1)当
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(2)当
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【推荐1】已知函数
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(1)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f6fb04d106fa268254458d3d34c17f.png)
(1)当
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(2)讨论
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【推荐2】已知定义在
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(2)判断并证明
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(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6829201e322be6c94bd8305f3184d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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(Ⅰ)求函数
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适中
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名校
解题方法
【推荐2】已知函数
.
(1)用定义法证明:
在
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(2)若对任意
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea366268bda7a58cace1afb754b18788.png)
(1)用定义法证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
(2)若对任意
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