名校
1 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933347fd4d93628c8a9cb6a540560471.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/273a61f0869406c75be25dab20ec0af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836147cc2b534de6b691c427643a0493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933347fd4d93628c8a9cb6a540560471.png)
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名校
2 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89013d15ae3533ff21106a4022dbf2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05551b1d4b65f27a932c33ddb1cb6ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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真题
3 . 已知
则不等式
的解集为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbce12f6911dacf78262ba950c0be55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e1bcced697608aa2a6c6afcc181da7.png)
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名校
解题方法
4 . 已知集合
,集合
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f581d68e1efa09bfcb6d827eb8d428d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68446708a5fc91d73a90cb9d36f3782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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5 . 一元二次不等式的解法
求一元二次不等式
(
,
)解集的步骤:
一化:化二次项的系数为______ .
二判:判断对应方程的实数根.
三求:求对应方程的实数根.
四画:画出对应函数的图象.
五解集:根据图象写出不等式的______ .
规律:当二次项系数为正时,小于取中间,大于取两边.
求一元二次不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408950992705f5afda2e9579ea9d92fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5501f3747271c37423a2ffa5576d1a2e.png)
一化:化二次项的系数为
二判:判断对应方程的实数根.
三求:求对应方程的实数根.
四画:画出对应函数的图象.
五解集:根据图象写出不等式的
规律:当二次项系数为正时,小于取中间,大于取两边.
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2024·全国·模拟预测
解题方法
6 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e21a23fbd611acc96cc16d9de1ee74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e766cf9ba819782f6a35034b7eaf539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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7 . 不等式
的解为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bdd4c8b01e63d3ee96eeb2ca3447186.png)
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8 . 若集合
,则集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca60acbc389a4a83820cf0d19536d3f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
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名校
9 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19df635acc14579a821b408206549971.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3bf17e2189abda65de08b248b6155c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/440555e75c74af7ac1f03512f86ee363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19df635acc14579a821b408206549971.png)
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2024-04-20更新
|
637次组卷
|
2卷引用:山东省菏泽第一中学人民路校区2024届高三下学期3月月考数学试题
10 . 已知集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fed3bd5bc925cf990e057f43395bff.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/601b85d2d23143cc5d2a8b410200741f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fed3bd5bc925cf990e057f43395bff.png)
您最近一年使用:0次