已知集合A为函数
的定义域,集合
,
.
(1)用区间表示集合A;
(2)从下面的三个条件中任选其中一个:①
;②
;③
,求解实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02af8a29a61be814961e2e433b2c84e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd6736f2ae47e44cba836c472acefa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec2349e3509799b01ce88ce91a0d7dda.png)
(1)用区间表示集合A;
(2)从下面的三个条件中任选其中一个:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
更新时间:2022-02-15 12:57:21
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适中
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名校
【推荐1】已知全集
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注:如果选择多个条件分别解答,按第一个解答计分.
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(1)当
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(2)在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
注:如果选择多个条件分别解答,按第一个解答计分.
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解题方法
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