函数
的图像如图所示,则不等式
的解集是__________ ,不等式
的解集是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6337d68cd5653767e3a1889b8b2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84617aaab200384efeaec9a4fe71772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb193e51bf134d6dc274b4da7a03e66.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/e8b0274f-90ed-4792-88ab-9427a86bd61c.png?resizew=158)
更新时间:2022-11-10 23:05:11
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解题方法
【推荐1】已知函数
给出下列4个命题:①当且仅当
时,
是偶函数;②函数
一定存在零点;③函数在区间
上单调递减;④当
时,函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50134a2d2ad1194951fea14752316b09.png)
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【推荐2】函数
的定义域为
,值域为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efac516a69e538b80c338d23cceeb93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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【推荐1】已知集合
,
,若
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的取值范围是______ ,若
,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de8fe168d39e3e249ee8e3d70e09902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58d863072ef6a9b1fc11ee1dbbdf643.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】若
有意义,则实数x的取值范围为___________
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【推荐2】已知
,则实数
取值范围为_________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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