名校
1 . 已知二次函数
,甲同学:
的解集为
;乙同学:
的解集为
;丙同学:
的对称轴大于零.在这三个同学的论述中,只有一个假命题,则
的范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0269de86474198a096ec7949aaf8cd03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6d8d3a028094e677b6a48855a93d56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6d8d3a028094e677b6a48855a93d56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-11-02更新
|
120次组卷
|
2卷引用:陕西省安康市2023-2024学年高一上学期12月联考数学试题
名校
2 . (1)不等式
的解集为
,求不等式
的解集.
(2)当
时,不等式
恒成立,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c0c06587ccba1b6eea32c84d1fcade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72656c882b2830eeb8053ec18c0088f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b843858ba23012c724dea0c51d54a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0b96f0883f070a185c5cf9ea71cd40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-01-02更新
|
497次组卷
|
6卷引用:陕西省渭南市富平县蓝光中学2023-2024学年高一上学期10月第一次质量检测数学试题
名校
3 . 已知集合
,
.
(1)若
,求实数
的取值;
(2)当
,且
时,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0d80bc1dc4fb9c04d25368bc8dab88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a739d9d29191fa9d1efb4618751e1b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320a13248a3a1208ff6ee85c9d26f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-10-16更新
|
979次组卷
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8卷引用:陕西省西安市高新一中2022-2023学年高一上学期第一次月考数学试题
名校
4 . 已知
为实数,函数
.
(1)若
是函数
的一个极值点,求实数
的取值;
(2)设
,若
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84d0bc1221cb1737a52848bd83b93bd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb1161e72920a3420e0060f227842ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c1eae628361a02d3301b15b2ee2656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/676435d84294be8df88f2840907c4b19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-09-23更新
|
1411次组卷
|
8卷引用:陕西省榆林市定边县第四中学2023届高三上学期第二次月考理科数学试题
陕西省榆林市定边县第四中学2023届高三上学期第二次月考理科数学试题四川省宜宾市叙州区第一中学校2019-2020学年高二下学期第四学月考试数学(文)试题广西桂林市柳州市2018年届高三综合模拟金卷(1)理科数学试题广西桂林市柳州市2018年届高三综合模拟金卷(1)文科数学试题山东省栖霞市第一中学2018届高三4月模拟考试数学(理)试题黑龙江省牡丹江市第一高级中学2018-2019学年高二下学期期末数学(文)试题安徽省合肥市庐江县五校2022-2023学年高三上学期期末联考数学试题(已下线)第七章 导数与不等式能成立(有解)问题 专题一 单变量不等式能成立(有解)之参变分离法 微点1 单变量不等式能成立(有解)之参变分离法
名校
5 . 已知不等式
的解集为集合A,集合
.
(1)若
,求
;
(2)若
,求实数
的取值范围;
(3)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7e48dd3bc72004e6549a51c3d98ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65397186779d9205c93b1ba96145dadd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
6 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若对任意
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e7504b8b44b0fd789c183d981dae275.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76693f7ef9a4dca9c649153b6d7196e4.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee18d7a40f7a7e0dc85b1bd75bf750c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2749d590bdf00e76a4bbbcab87694659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-04-04更新
|
108次组卷
|
2卷引用:陕西省安康市高新中学2024届高三下学期2月月考数学(文)试题
解题方法
7 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c256fbd9aa0f611c6524a9d4053341.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/062844ed8f0949e6717bb6fd0b84fe46.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c727e4cdca97063b0b7daf038e8834.png)
您最近一年使用:0次
8 . 已知集合
,不等式
的解集为集合
.
(1)当
时,求
;
(2)设命题
:
,命题
:
,若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed4152c5b3498b307a637e4c7eec0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bc241337d7e3929ef499e6a366a5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)设命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
9 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff9ed96b94b6c8bad55e53db3667b0d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abdaffa9c15517afe6d7ba6488f88f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-12-15更新
|
55次组卷
|
2卷引用:陕西省安康市高新中学2023-2024学年高三上学期12月联考(全国乙卷)理科数学试题
解题方法
10 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若对
,关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0aa958bf8099be6d4a4df71e2f6757e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a933eddb3696edb5dc547b7d047bb923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次