解下列一元二次不等式:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5511850905b9a64a37255ba9b1ebc893.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c2788d20945420b6821ccd5d41e0e9.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00902f5c0687cbf89f501fa012521301.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ee9178332028bf87b4b1e9575ccd9ef.png)
更新时间:2023-10-26 09:58:07
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【知识点】 解不含参数的一元二次不等式解读
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【推荐1】已知不等式:
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(1)若
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(2)若
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(2)若
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【推荐2】已知集合
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(1)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4da2e76f0b32af9438f182f19261faa.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
您最近一年使用:0次