名校
解题方法
1 . 下列说法正确的是( )
A.函数![]() ![]() |
B.关于![]() ![]() ![]() ![]() |
C.若正实数![]() ![]() ![]() ![]() ![]() |
D.若函数![]() ![]() ![]() ![]() |
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2024-04-22更新
|
221次组卷
|
2卷引用:安徽省合肥市第一中学2023-2024学年高一上学期素质拓展训练(9)数学试题
名校
解题方法
2 . 已知关于
的不等式
的解集为
或
.
(1)求
,
的值;
(2)当
,
,且满足
时,求
的最小值;若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9deeb02676b13db2735699803f8c601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc70834d8530ac74608b49458f5db148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac1a939a3b48b9c0ad17430ca8eefde.png)
(1)求
![](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/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953521e0c0ec1c417d7ca2197d8c601e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fc838e1477179b36ca7481ee2cc1e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c36cdb03a872a89374ead035774d493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
解题方法
3 . 下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/4/1/2948908088377344/2950420187717632/STEM/908063d9-56e1-4fae-a807-0a6edd128e62.png?resizew=134)
![](https://img.xkw.com/dksih/QBM/2022/4/1/2948908088377344/2950420187717632/STEM/908063d9-56e1-4fae-a807-0a6edd128e62.png?resizew=134)
A.集合![]() ![]() |
B.若a>0,b>0且ab=a+b+3,则ab的最小值为9 |
C.如图为二次函数y=ax2+bx+c的图象.则![]() |
D.不等式![]() ![]() |
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名校
解题方法
4 . 已知关于x的不等式
的解集为
或
.
(1)求
的值;
(2)当
,且满足
时,有
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9deeb02676b13db2735699803f8c601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da648ee55d60eb76c56cd747c30d40f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d5c65d76b90bafe1a009ef1693af2f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8088405bfd68dbc8e454baf8051e1948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b66842d76c363d84d2449c1cffc6b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2022-04-09更新
|
2264次组卷
|
12卷引用:福建省德化第一中学2021-2022学年高一上学期第一次月考数学试题
福建省德化第一中学2021-2022学年高一上学期第一次月考数学试题第二章 一元二次函数、方程与不等式单元测试(基础版)山东省青岛第一中学2022-2023学年高一上学期第一次阶段性检测数学试题山东省青岛市青岛第一中学2022-2023学年高一上学期10月月考数学试题(已下线)专题2.7 一元二次不等式恒成立、存在性问题大题专项训练(30道)-2022-2023学年高一数学举一反三系列(人教A版2019必修第一册)江西省抚州市金溪县第一中学2023-2024学年高一上学期第一次月考数学试题四川省遂宁市射洪市射洪中学校2023-2024学年高一上学期10月月考数学试题四川省资阳市乐至县乐至中学2023-2024学年高一上学期10月月考数学试题江苏省盐城市亭湖高级中学2023-2024学年高一上学期第一次阶段性考试数学试题山西省太原市外国语学校2021-2022学年高二下学期5月联考数学试题江苏省淮安市马坝高级中学2022-2023学年高三上学期第一次检测数学试题江苏省扬州市第一中学2023-2024学年高二下学期5月教学质量调研评估数学试题
解题方法
5 . 已知定义在
上的函数
,其中
为常数.
(1)求关于
的不等式
的解集;
(2)若
是
与
的等差中项,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cdaeb07f145793d6fe8ed93bfbe61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28df274b9629283988a4b6c41724c64d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d55ef0d1b7ea88d92fd6e1ecebb5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f484115a9df1b6060d6b14df85c6f38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35770a47ffcba6bf1d94eceabb416d96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
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名校
解题方法
6 . 已知二次函数
,若
的解集为单元素集,则
的取值范围为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81073e554cb316af7ceb48816e15850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
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解题方法
7 . (1)若关于
的不等式
的解集是
的子集,求实数
的取值范围;
(2)已知
,
,
均为正数,且
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93392db56107b2a0343c660b1575654d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b890de2a8a16d46d97d5737679a5d3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51405d1b0d582e9d29201759cdf4adcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae24688d4c45aad43e9af0b7bbfda6b.png)
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名校
8 . (1)若关于
的不等式
的解集是
的子集,求实数
的取值范围;
(2)已知
,
,
均为正数,且
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eba331a8902752f343e9c4d70afb883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb49dbba01c4ff5f686ffc8828351b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7de05b5a1a3dacc73118f20055f3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae24688d4c45aad43e9af0b7bbfda6b.png)
您最近一年使用:0次
2018-07-17更新
|
1476次组卷
|
4卷引用:【全国百强校】安徽省六安市第一中学2017-2018学年高一下学期期末考试数学(理)试题
名校
解题方法
9 . 下列说法中,正确的有__________ .(写出所有正确说法的序号)
①已知关于
的不等式
的解集为
,则实数
的取值范围是
.
②已知等比数列
的前
项和为
,则
、
、
也构成等比数列.
③已知函数
(其中
且
)在
上单调递减,且关于
的方程
恰有两个不相等的实数解,则
.
④已知
,且
,则
的最小值为
.
⑤在平面直角坐标系中,
为坐标原点,
则
的取值范围是
.
①已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/123c15869608f974b89771202442d3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9059219044592024f63637984f86be30.png)
②已知等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5188d6760683a860adab0cda195cdf80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd6fe11dfa538e67bfd63478fc428a1.png)
③已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d97ad2720a77862202ac613e9e77e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1e1c54b1a07850afba46754a27b32a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cdd93d95a9fb5f5cd7e8be3800ecdf.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0cb6220005e5dbd9999e537aa90d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be97cd1c7111b654d87d8fbb63b6a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3aa69c18639f94f0635ea4c07dc2dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b90f08f3dcf9f9c7fe7c0fced28bc9a.png)
⑤在平面直角坐标系中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e04872f980977d25187ae6b80c2f04c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aafb698ab3b41359de48221799569bd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4a35d07184600690b812ac5885ee66a.png)
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