名校
解题方法
1 . 已知二次函数
的图象过点
,且不等式
的解集为
.
(1)求
的解析式;
(2)若
在区间
上有最小值2,求实数
的值;
(3)对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0e705301752424a492f6277ed7774e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa504a3525899b292b2b53aae50fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1e57c8817859628bd3d05451233899.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021cd7da1b0cac4e4590d120e3b8f770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7538d96f6d68739b259341abab348403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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解题方法
2 . 已知
,
,且
.
(1)求
的最大值;
(2)若
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf913c92060a7bad4de1ee8c04d011e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec38c63ca2ddd58e3d5ed25e18116011.png)
您最近一年使用:0次
2023-12-20更新
|
259次组卷
|
2卷引用:河北省沧州市2023-2024学年高一上学期11月期中考试数学试题
名校
解题方法
3 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0375323c83e1b48068162f3a38a176.png)
(1)
在
上恒成立,求x的范围.
(2)
在
上恒成立,求a的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0375323c83e1b48068162f3a38a176.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f039953f09677969db031e357ec8a208.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
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解题方法
4 . (1)二次不等式
的解集为
,求
的取值范围
(2)设函数
;若对于一切实数
恒成立,求
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef14ae3f04f0087c40ecffde64a2a977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c320c1a1eae939018226067144497b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9394993680541b3b1b811a46641dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
解题方法
5 . 设
,
(1)若
使
成立,求实数
的取值范围;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8162ad27aa5287501afe6b0510be0066.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3cfe0d30dca23488bf069b3edfd280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd78eaaea022ca802d231c741ac2779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49bf7201f3ec9a03409cc931aa217e6d.png)
您最近一年使用:0次
解题方法
6 . 已知二次函数
,其中
.
(1)若
,解关于
的不等式
;
(2)若
且不等式
对一切实数
恒成立,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3eb9b6fe8959ae9e71e857b6d6fed49.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0ea451f7feb1e03c1e31086e7db461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15d40a6f559b5d1c71216768c10445f.png)
您最近一年使用:0次
7 . 已知命题
,
,命题
和
是方程
的两个实根,不等式
对任意实数
恒成立;
(1)若命题p为真命题,求实数a的取值范围;
(2)若命题
有且只有一个为真命题,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f746eb8efc0dc5b8f48f7b4c0ebeca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f5a883bfdfdb1ff27434e4686d7d5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e04d2761ba25e9b3db9f87865b89d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af035663f518ab9d750a430f2308537e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/625413476c10d9fe3ea23cd48b255048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d0b997c1c15b764383e9184b78ca64.png)
(1)若命题p为真命题,求实数a的取值范围;
(2)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
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名校
解题方法
8 . (1)若关于
的不等式
在
上有解,求实数
的取值范围;
(2)若
不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b703d1da5065e4b93a8d5879f72d412b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c82644f77c5455ceb7f94950e94273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1a9f8c14bb1ea792fed48e4d3d9b2ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc811f214359125d6cb7ca0fc7471be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
9 . 已知二次函数
.
(1)若
,求
的值;
(2)若二次函数
的图像恒在
轴的上方,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ddbe3355d3d4ddd1cdcb0b7395a51e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a355a0c53f4605669a3667e87356c471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-12-19更新
|
234次组卷
|
3卷引用:山东省潍坊市国开中学2024届高三上学期期中数学试题
山东省潍坊市国开中学2024届高三上学期期中数学试题海南省白沙县海南中学白沙学校2023-2024学年高一上学期期末数学试题(已下线)考点9 与二次函数相关的参数问题 --2024届高考数学考点总动员【练】
名校
解题方法
10 . “不等式
在R上恒成立”的一个必要不充分条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456a94d024d8842462b95181e3d8e498.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-18更新
|
918次组卷
|
4卷引用:湖北省孝感市大悟一中等学校2023-2024学年高一上学期11月期中联考数学试题