1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4971b1838995bb2fde563e4c51736c9e.png)
(1)若不等式
的解集为
,求
,
的值;
(2)当
时,若方程
的两个不相等的实根为
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4971b1838995bb2fde563e4c51736c9e.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa71f2ac3729ea7883f6ddfd2f2c9f1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31028db19974abb5d8dcbf8a3067b531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291a90a76298b4cee13fd169fed7d6cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62d4de61dac7ac58b5b5845b2211af8.png)
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解题方法
2 . 已知二次函数
只能同时满足下列三个条件中的两个:
①
;②不等式
的解集为
;③函数
的最大值为4.
(1)请写出满足题意的两个条件的序号,并求出函数
的解析式;
(2)求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad9a11b81b7a8643005608eacc7f9d9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac55d420e554e9a8352c1523a3e0043e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)请写出满足题意的两个条件的序号,并求出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36d16c34855b93e2a2b0f2bf70cd790.png)
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解题方法
3 . 函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a533553c1e7cff7175a2f27a816aca1.png)
(1)若
,求
的解集;
(2)当
恒成立时,求
的取值范围;
(3)若方程
有两个实数根
,且
,求
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a533553c1e7cff7175a2f27a816aca1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec8b7e652983f62b514e28aac916c8d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 已知函数
,且
的解集为
.
(1)求a,b的值;
(2)当
时,求
的最小值及取得最小值时x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a83ab22b0c36cd8c26e061db720eb46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69abe959988e4c8c0739f5857ccfb0f.png)
(1)求a,b的值;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ada0af2a1673f6182f7e70b257a999.png)
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名校
5 . 已知实常数a、b,满足
,
(1)证明:关于
的方程
有两个不同的实数解.
(2)若关于
的方程
有两个不同的实数解
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
(1)证明:关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358677b8b71354b1b639b231e5c647a7.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358677b8b71354b1b639b231e5c647a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b5f32c09caa0be0d4c33be07aa4530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ba253c3d7949e75483437b3dc3841b.png)
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6 . 已知二次函数
的图象与x轴交于
,
两点.
(1)当
时,求
的值;
(2)求关于x的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1256ac35526c3c4d5b4e74d3b438a1a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec3d75e53b990bc8f9a4622928dd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b583230a32b774445332490c511989.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c847f857b8d1788d4ba414b82840ef5e.png)
(2)求关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd09232cbeca5fcc574630105768db12.png)
您最近一年使用:0次
2023-10-13更新
|
156次组卷
|
5卷引用:云南迪庆州藏文中学2023-2024学年高一上学期期中考试数学试题
云南迪庆州藏文中学2023-2024学年高一上学期期中考试数学试题江西省丰城市第九中学2023-2024学年高一上学期11月期中数学试题山西省临汾一中集团校2023-2024学年高一上学期10月联考数学试题山东省平邑县第一中学2023-2024学年高一上学期阶段性质量检测数学试题(已下线)高一上学期期末复习【第二章 一元二次函数、方程和不等式】(基础篇)-举一反三系列(
名校
7 . 已知
,
是关于x的方程
的两个实数根.
(1)若
,求m的值;
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ee68161b3ef36e1d7e9067a976e0a5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34a3ce3c249a3d3cd08bee6cee1e38a2.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c847f857b8d1788d4ba414b82840ef5e.png)
您最近一年使用:0次
2023-09-19更新
|
898次组卷
|
6卷引用:辽宁省六校协作体2023-2024学年高一上学期期中考试数学试题
名校
8 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)若方程
有两根,且两根为
,求
的取值范围;
(2)已知
,关于
的不等式
的解为
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff29de3c174939abe222e5aea5fcf847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c847f857b8d1788d4ba414b82840ef5e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80e16bf315c0840f809713745720d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc887a6c34c3e2f859e6a59a9ed4cac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f488c96b26bb2f5bbea046f4b8dcbd.png)
(1)求证:不论
取何值,函数
总存在零点.
(2)若对于任意的
,都有
,求实数
的取值范围.
(3)对于给定的正数
,存在一个最大的正数
,使得在整个区间
上,不等式
恒成立,求
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f488c96b26bb2f5bbea046f4b8dcbd.png)
(1)求证:不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7868566ec2b22bc3be4cb2ca88c1f1bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)对于给定的正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7711204ab55319790f5adba1e0151962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6e1b9b939ecf6b57bea30495a1d726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12efe4b11648d94a4d37fa409bd0a424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7711204ab55319790f5adba1e0151962.png)
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名校
10 . 设函数
的图象与平面直角坐标系的
轴交于点
.
(1)当
时,求
的值;
(2)若
,求实数
的取值范围;
(3)在(2)的前提下若对于任意的
,有
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182bfae7789c9ab5ba3b451a86766a6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b4a57fa701747e4b70ce26eb18ab8cc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b4f440f85c309ed57538f1fd7fbdf9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eebe4341621d4532a17b1324e016b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)在(2)的前提下若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eebe4341621d4532a17b1324e016b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2d636f3954c4e879a98f279783d801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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