1 . 已知二次函数
,关于
的不等式
的解集为
,(
),设
.
(1)求
的值;
(2)
R
如何取值时,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc6c0fd1a3e2428542dbefb518280e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3c39d7e70f6291e47adb6367c5f31f.png)
存在极值点,并求出极值点;
(3)若
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
,求证:
N
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eb145e4d81c71721c0dcabd187431b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1d10e3278c5523d0b7344e6b128ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db50808197f81f61da6de81c0d4abe22.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572051425050624/1572051431342080/STEM/16d1e6bbc6554282b575bfc1e1c12d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d977fb6d13ca2e62dbdc66e31e4ff5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d8e18d9660c3aeecf78020dc54c075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc6c0fd1a3e2428542dbefb518280e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3c39d7e70f6291e47adb6367c5f31f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fa30b8a0cf03566e59f39cb394d8a1.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0019efd932db51afcfa2c4f6b160ec3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72106152f5d2d9a120c5709ccba49902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81a57cae6fe8a6542f2b56ff5e0c9b2.png)
您最近一年使用:0次
2016-12-03更新
|
266次组卷
|
2卷引用:2015届陕西省西安交大附中高三上学期期中考试理科数学试卷
名校
解题方法
2 . 在锐角
中,内角A,B,C所对的边分别为a,b,c,满足
.
(1)求证:
;
(2)若
,求a边的范围;
(3)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8e5ce6c55a720a332a08c07f1a89a1.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9563e5c29f03707996eb761fba29ce21.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
,
且
.
(1)若
,求不等式
的解集;
(2)若
,令
,若对一切实数
,不等式
恒成立,求实数
的取值范围;
(3)若
,试确定
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f289862f955d78d7b7a9f690d46b6544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/156ae979b26b86d8bf54212b47336432.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b046fa14312a1dfa0a8a9da1de08525a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e158f84423db928d56afe4d94c83eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90418d124a68d162a5ead1900cba6fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024高三·全国·专题练习
名校
解题方法
4 . 已知关于
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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9deeb02676b13db2735699803f8c601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20c78ad990e2424f4ece6a926e17bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d5c65d76b90bafe1a009ef1693af2f.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/6c36cdb03a872a89374ead035774d493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2024-03-08更新
|
451次组卷
|
3卷引用:模块一 基础知识(集合、常用逻辑用语、不等式、复数)(测试)
(已下线)模块一 基础知识(集合、常用逻辑用语、不等式、复数)(测试)辽宁省七校2023-2024学年高一下学期期初考试数学试卷 吉林省延边朝鲜族自治州延边第二中学2023-2024学年高一上学期第一次阶段检测数学试卷
名校
解题方法
5 . 已知函数
.
(1)若不等式
的解集为
,求实数a的值;
(2)
时,
恒成立,求实数x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585c861f339d170f806e3e31f1fe95fa.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebfdecc7f8089cb23c20d0a93ee1b601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42226c99901dbfc0b75ec3a2deb611a2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b98ffee92a7948602e86e7ffa5dd1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6beda797b9b42f555d84a3211ed12df9.png)
您最近一年使用:0次
2024-04-11更新
|
423次组卷
|
2卷引用:湖南省长沙麓山国际实验学校2023-2024学年高二4月学情检测数学试题
解题方法
6 . 下列说法正确的是( )
A.函数![]() ![]() |
B.关于![]() ![]() ![]() ![]() |
C.若正实数a,b满足![]() ![]() ![]() |
D.若函数![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
7 . (1)当
,若关于
的不等式
的解集不空,求实数a的取值范围;
(2)求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88b6d0df0ee20bf56477f867015a08c.png)
(2)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097ca32934ef96f84e79ef007f2d8708.png)
您最近一年使用:0次
2023-09-12更新
|
1113次组卷
|
3卷引用:河北省唐县第一中学2022-2023学年高一上学期10月月考数学试题
河北省唐县第一中学2022-2023学年高一上学期10月月考数学试题(已下线)第3章 不等式综合能力测试-【帮课堂】(苏教版2019必修第一册)天津市武清区杨村第一中学2023-2024学年高一上学期第一次月考数学试题
名校
解题方法
8 . 已知函数
.
(1)当
时,求关于
的不等式
的解集;
(2)
,关于
的方程
在
总有两个不同实数解,求实数
的取值范围;
(3)若
在区间
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ede4a660ea4ec1bac8834a388f54a69.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4abca1cd298c31bf8c0babfea7074d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c885198ab1a7a342aa35ced7461b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4cbc7b067862a3d9c6789b392fc068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ec0a04d44656bd8b58d19afabbf235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-01-01更新
|
416次组卷
|
2卷引用:黑龙江省齐齐哈尔市克东县第一中学2023-2024学年高一上学期12月月考数学试卷
名校
解题方法
9 . 已知二次函数
及一次函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ebd1bc45f29074134b423768172539d.png)
(1)当
时,求不等式
的解集;
(2)若对
使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa321f158bc485fb1e6aba444188596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ebd1bc45f29074134b423768172539d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4c781a49461703370132415bd270cc.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c82cd15c3af5592b84cce0a8427ead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72372e929d36dd1b0bd776de2495e876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2022-10-28更新
|
503次组卷
|
2卷引用:江苏省连云港市新海高级中学2020-2021学年高一上学期期中数学试题
10 . 以下说法中正确的是( )
A.不等式![]() ![]() |
B.已知![]() ![]() ![]() |
C.正数a,b满足![]() ![]() ![]() |
D.若不等式![]() ![]() |
您最近一年使用:0次
2022-10-26更新
|
1136次组卷
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7卷引用:山东省青岛市实验高中(原青岛第十五中学)2021-2022学年高一上学期第一学段质量检测数学试题