已知
,
.
(1)判断函数
的奇偶性,并用定义证明;
(2)当
时,判断函数
在区间
上的单调性,并用定义证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f7f23e7f20dd8bc65a4967cd306782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325cd3e57465c5cc93f068c94c2b8f7f.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5042a85ef71355436da60c45ceadfbbc.png)
更新时间:2024-01-18 21:55:36
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解题方法
【推荐1】已知幂函数
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(1)求出函数
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(1)求出函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
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(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b767c33d36acbb9b5110ad0652237652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2401f1358466ad761052b98564ae5873.png)
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【推荐2】已知函数
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(1)求函数
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(2)试判断函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bab93efd42a3054040ccff8adf697c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3692d8fc8e9408781ca472eba17709f.png)
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(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f345fc7f109f9718883c9d1c8c1036bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
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【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bdae0a49cb70f74c5cd89defaacdfdc.png)
(1)判断
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(2)判断
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bdae0a49cb70f74c5cd89defaacdfdc.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4567bdfcb5d92cd1e77843877c01c6c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4567bdfcb5d92cd1e77843877c01c6c.png)
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【推荐2】已知函数
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(1)判断函数
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(2)讨论
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(1)判断函数
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(2)讨论
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