1 . 关于
的不等式
的解集为________________ .
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944063488/STEM/db035463d0e341f59f73beb6242258b2.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944063488/STEM/55355209c18b4fa6926bbc0e767dedc6.png?resizew=136)
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2 . 在锐角
中,
,
,则
的值等于____________ .
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944047104/STEM/57d30de2f0074eefb992302046179efe.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944047104/STEM/59cf5b64be3046ea880e940530433470.png?resizew=49)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944047104/STEM/079a88b88fd14bf9b186c4e750433ac4.png?resizew=52)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944047104/STEM/5640200be5524de7bdd3b773daddc6b4.png?resizew=41)
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3 . 已知实数
,
满足约束条件
,若目标函数
仅在点
取得最小值,则
的取值范围是__________ .
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572710120538112/1572710126600192/STEM/9404eb31f7c34f1d924d879913b66a75.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572710120538112/1572710126600192/STEM/bc9676c1763b44a891750b86ac888d57.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572710120538112/1572710126600192/STEM/c4110a21b24b4337aa85dbe62a6ab17a.png?resizew=79)
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572710120538112/1572710126600192/STEM/9a62264380274cb4aecd11d356c822de.png?resizew=77)
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572710120538112/1572710126600192/STEM/2860f852a7c9409a8e47ea2d731fae8d.png?resizew=43)
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572710120538112/1572710126600192/STEM/88ddcd1152154df496956a76e9bec688.png?resizew=13)
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4 . 在数列
中,若
为常数
,则
为“等方差数列”,下列是对“等方差数列”的判断;
①
是等方差数列,则
是等差数列;
②
是等方差数列;
③ 若
是等方差数列,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bed8c521ba833022d7f57a4d44b2824f.png)
为常数
也是等方差数列;
④ 若
既是等方差数列,又是等差数列,则该数列为常数列.
其中正确命题序号为__________ .(将所有正确的命题序号填在横线上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca1c0c66577dd728e61895ebc96b3ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c806dc9bf2cad0cb20220d23bd252a2f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef891fc99921b6093392c1e3c5347d1.png)
③ 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bed8c521ba833022d7f57a4d44b2824f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b6a244eab64b41c3f98222feb04855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
④ 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
其中正确命题序号为
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5 . 设变量
满足约束条件
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c29a3f3d078fabcfe99b8b96d711b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca6488b9783f8b2583b7da4246a274d4.png)
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11-12高二上·广东揭阳·期末
名校
6 . 若关于
的不等式
的解集中的整数恰有
个,则实数
的取值范围是________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46ea2299e4d65a1e4562ba2a37b8b55c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
1044次组卷
|
12卷引用:2015-2016学年广东省汕头市金山中学高一下期中数学试卷
2015-2016学年广东省汕头市金山中学高一下期中数学试卷(已下线)2011年广东省揭阳市第一中学高二上学期期末检测数学理卷(已下线)上海市华东师范大学第二附属中学2016-2017年高一上学期第一次月考数学试题2015-2016学年福建厦门双十中学高二上期中文科数学试卷江苏省南京市秦淮中学2017-2018高一下学期期末考试数学模拟试题【全国百强校】湖南省长沙市雅礼中学2019届高三上学期11月月考(三)数学(文)试题人教A版 成长计划 必修5 第三章不等式 高考链接上海市浦东新区川沙中学2015-2016学年高一上学期期中数学试题河北省石家庄二中2020-2021学年高一上学期第一次月考数学试题高中数学解题兵法 第一百零六讲 横看、侧看(已下线)上海市华东师范大学第二附属中学2022-2023学年高一上学期9月阶段测试数学试题上海市位育中学2023-2024学年高一上学期10月月考数学试题
7 . 下列结论中: ①函数
有最大值为
; ②函数
(
)有最大值
; ③若
,则
.正确的序号为________
![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167432192/STEM/cf646c2a0e7a4cf0ab32e7a9cade3a60.png?resizew=159)
![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167432192/STEM/364bc7dce63446fcba26ff8ec2db82c4.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167432192/STEM/ab4cd1ae26c04b41a8ac52672d7497f3.png?resizew=96)
![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167432192/STEM/584ee0780d8a401ba0b30f955d7cbfa0.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167432192/STEM/399c9baee02b4a6493d5921e91410892.png?resizew=56)
![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167432192/STEM/3aab637b42df4f14a26fa3dfa63a8b29.png?resizew=39)
![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167432192/STEM/3d97a088ff9a4e4eafd5d273d25b49bf.png?resizew=112)
您最近一年使用:0次
8 . 若不等式
的解集为
,则![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167391232/STEM/d1bdbd5c3a82462c860b2873f13830e9.png?resizew=27)
_______
![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167391232/STEM/960d02cfe3234b2aa9932a37cbda0c43.png?resizew=96)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4573b66a2dbd65dd7eb02c5912eddce8.png)
![](https://img.xkw.com/dksih/QBM/2016/5/11/1572632161345536/1572632167391232/STEM/d1bdbd5c3a82462c860b2873f13830e9.png?resizew=27)
您最近一年使用:0次
2016-12-04更新
|
623次组卷
|
2卷引用:2015-2016学年广东省惠来一中、揭东一中高二上期末文科数学试卷
9 . 设二次函数
的值域为
,则
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf206356b524cd4fa473881fb987d96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60cce332317884d04b38b1ebe8a50d18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471ea695f15ed92d2f60582dc612db78.png)
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10 . 设
满足约束条件
,则
的最大值是________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089ff5fde4d72caf7ffa2a7a579ca855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6dfad5c144afe8b9e18f998f3a0dd6.png)
您最近一年使用:0次