名校
解题方法
1 . 已知命题“
,使
”是假命题,其实数
的取值为集合A,设不等式
的解集为集合B,若
是
的充分不必要条件,则实数a的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/387816ed918570c58d442132e4ebe381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1002c5eeb292444c32850512d34bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b99e0ace222ac859fff9f43f13bf54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
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2022-10-27更新
|
197次组卷
|
4卷引用:广东省清中、河中、北中、惠中、阳中2023-2024学年高一上学期五校联合质量监测考试数学试卷
2 . 若函数
的图象与x轴有四个不同的交点,则实数取值的范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d0b933be495276557bbfaaeac96a966.png)
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3 . 若关于
的不等式
的解集为
,则实数
的取值为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33401fcc8f74d5c65e09fdf6a3400519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612f208b079e2015ce544f8550334ebc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 若关于x的不等式
的解集为
,则k的范围为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c397ead9b62c53bc29a31c4282234b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
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2020-03-05更新
|
170次组卷
|
3卷引用:上海市杨思中学2016-2017学年高一上学期期中数学试题
5 . 若不等式
的解集为
,且
,则实数
的范围为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3afa326eb0310ca0d935b3739629973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52854d0ead4737302f4b4706e1f80553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2019-11-09更新
|
180次组卷
|
2卷引用:上海市嘉定区封浜高级中学2018-2019学年高一上学期期中数学试题
名校
6 . 已知
,
是两个定义在
上的二次函数,其
、
的取值如下表所示:
则不等式
的解集为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
1 | 2 | 3 | 4 | |
0 | ||||
0 | 1 | 0 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af1da8fd531d5575f65734a9b2a59831.png)
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7 . 设不等式
的解集为R,则m的范围是____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a5e615ff9d7b357d1a96aae3cfb051.png)
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8 . 已知函数
,若函数
有 3 个极值点
,则实数
的取 值范围是_______ ; 若
,则实数
的取值范围是 _____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9180806e001b88049b9441af6ad1d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcee20976de0e0e8c1ccd7a951674691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb9facbec77e33a43dc5cec58eea852d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 若不等式
对一切实数x均成立,则实数m的取值范围为__________ .若存在实数b,使得关于m的方程
在上述范围有解,则实数b的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d077db84f0c6fc73c3c42cb2a7699b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc206c313ac32cac46fd2e67a2f4e09.png)
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10 . 在平面凸四边形
中,
,且
,将四边形
沿对角线
折起,使点
到达点
的位置.若二面角
的大小范围是
,则三棱锥
的外接球表面积的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fcc01d2645b872aba4c781828f57fb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c5d634ef1f504b7b0c7827668971850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d682fd0344452998187cb6d48de3dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95d291b2c6d34920caad5a310712356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42020cfacd62b300cad053981bab9e0b.png)
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