真题
1 . 已知函数为
,在R上单调递增,则a取值的范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f680e201e39e5de21c988f16db8cd278.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 下列命题中正确的是( )
A.若已知集合![]() ![]() ![]() ![]() ![]() |
B.函数![]() ![]() |
C.已知不等式![]() ![]() ![]() ![]() ![]() ![]() |
D.命题![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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3 . 已知不等式
的解集为
,若
中只有唯一整数,则称A为“和谐解集”,若关于
的不等式
在区间
上存在“和谐解集”,则实数
的可能取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8870876779e79db7033f2617b8535eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083479b94380e8d659eff92d10a1989d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-02-06更新
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1157次组卷
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5卷引用:河北省衡水中学2023届高三上学期三调数学试题
4 . 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)
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2016-12-03更新
|
266次组卷
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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
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解题方法
5 . 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)
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解题方法
6 . 关于函数
,
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a903745cd2cb536443d07579b606ece5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681d6d27b23b1c41834d7516122f73f9.png)
A.若过点![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若函数![]() ![]() ![]() |
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2024-02-27更新
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5卷引用:湖南省岳阳市平江县颐华高级中学2023-2024学年高二下学期入学考试数学试题
23-24高二上·全国·课后作业
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7 . 若对圆
上任意一点
,
的取值与x,y无关,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a1a9410da8e3e67a8472aa5829d298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5be3dab006f76df2596fccea4c652b.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() |
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4卷引用:2.1 圆的方程(练习)-高二数学同步精品课堂(苏教版2019选择性必修第一册)
(已下线)2.1 圆的方程(练习)-高二数学同步精品课堂(苏教版2019选择性必修第一册)(已下线)模块五 专题4 期末全真模拟(能力卷2)期末终极研习室(高二人教A版)(已下线)专题10直线与圆、圆与圆的位置关系(4个知识点8种题型)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)山西省晋城市第一中学校2023-2024学年高三上学期第十二次调研考试数学试题
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解题方法
8 . 已知函数
若
的值域为R,则a的一个取值为____________ ;若
是R上的增函数,则实数a的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e372ebb8eae888f8db06520d6fc4316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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9 . 已知函数
.
(1)当
时,求
的单调区间;
(2)讨论
的零点的个数,并确定每个零点的取值范围(不要求范围“最小”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa6827f41ee66f5b0733ecd88198cfb7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2卷引用:陕西省西安市八校2021届高三下学期第三次联考文科数学试题
解题方法
10 .
,
.
(1)若
在
是增函数,求实数a的范围;
(2)若
在
上最小值为3,求实数a的值;
(3)若
在
时恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4b5dd2d9b5cd1fc0d7c01ad7d51379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e0400d730672ae2110ff48786dd1d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579e2c39e6c0a640357e3b0ccd6f954a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc23217fe5d727feace1509cda9cc2be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
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2020-06-25更新
|
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2卷引用:宁夏贺兰县景博中学2019-2020学年高二上学期第二次月考数学(理)试题