设关于x的不等式
的解集为A,关于x的不等式
的解集为B.
(1)求集合A,B;
(2)若
是
的必要不充分条件,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2a1d9c72ad6f69d55152a572f80b59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176f0ad4b9d581715dff883b0e414044.png)
(1)求集合A,B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
更新时间:2022-01-24 21:51:23
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【推荐1】已知集合
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(2)当
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(1)若
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(2)当
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解题方法
【推荐2】设集合
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76fd0c03a3c3e1fe9deb3410b76caa62.png)
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【推荐1】已知
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【推荐2】已知集合
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f9e281b2feb8a80e3acf2c397785313.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
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【推荐1】已知函数
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(1)若
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(2)解关于
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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【推荐2】
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(2)解关于x的不等式:
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