1 . 设
的内角
的对边分别为
,
,
.若
,
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](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/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f002f960ec07ea229ed243e2d991d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c365da2b0ffc3e6263dcd363e737847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46196aec06c25d5c8f9b1d3a8f50a889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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2016-12-04更新
|
505次组卷
|
2卷引用:2015-2016学年广东省惠州市惠阳高中高二下期中文科数学试卷
2 . 已知数列
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49653bd3e78f5f5c7a00ed1e6fad8805.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2efb9c54016521fc4d7405b89e7f607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49653bd3e78f5f5c7a00ed1e6fad8805.png)
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2016-12-04更新
|
484次组卷
|
2卷引用:2017届广东省惠州市高三第一次调研理科数学试卷
3 . 对于数列
,若
,都有
成立,则称数列
具有性质
.若数列
的通项公式为
,且具有性质
,则实数a的取值范围是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e286adec936512480531fa3ab27812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9b1c5beed0589b627767cdd7453849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be8f69402300f6ed932697689212e91c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161b5197bbade732e90d3cdfd16a206d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7281efb424aca4d16a48dcae7b2a9d8.png)
您最近一年使用:0次
2016-12-04更新
|
439次组卷
|
4卷引用:2015-2016学年广东省普宁英才华侨中学高二下第二次月考文科数学卷
2015-2016学年广东省普宁英才华侨中学高二下第二次月考文科数学卷2015-2016学年广东省普宁一中高二下学期第二次月考文科数学试卷2020届湖南省长沙市长郡中学高三下学期3月停课不停学阶段性测试数学(理)试题(已下线)第25练 数列的综合应用-2021年高考数学(理)一轮复习小题必刷
4 . 等差数列与等比数列之间是存在某种结构的类比关系的,例如从定义看,或者从通项公式看,都可以发现这种类比的原则. 按照此思想,请把下面等差数列的性质,类比到等比数列,写出相应的性质:若
为等差数列,
,则公差
;若
是各项均为正数的等比数列,
,则公比![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/148d1ffef37444798b6ef50a2ca44383.png?resizew=27)
_________________ .
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/9f5830f190aa444fa6791c1e200f6e20.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/8f581b6579e643a891c65d0f0aa72f33.png?resizew=143)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/97ef5744e73a4310b35b9e3719c7b0c0.png?resizew=68)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/9c448f46e8b04e778303d0d20c34c8b3.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/24a8977054e5420fa3c9a3a747a35963.png?resizew=135)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/148d1ffef37444798b6ef50a2ca44383.png?resizew=27)
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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)
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2016-12-04更新
|
1046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
名校
7 . 在
中,角
所对的边分别是
,
是
的中点,
,
,
面积的最大值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f9bba0e729202b7b71c72b5f2ae958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da96048f442b01d97c435bf33312e3d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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2016-12-04更新
|
524次组卷
|
2卷引用:2016届广东省佛山市高三上期末理科数学试卷
8 . 若数列{an}成等比数列,其公比为2,则
=____ .
![](https://img.xkw.com/dksih/QBM/2016/4/15/1572594816622592/1572594822193152/STEM/f086e0c1a06c4c3f9f2bda722017ab18.png?resizew=57)
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9 . 如图在
中,
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572586691633152/1572586697621504/STEM/4963136aa1b744ff8e400308dddd1a6b.png?resizew=308)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572586691633152/1572586697621504/STEM/345f364c53754a2fa34d32195dcb8ed1.png?resizew=202)
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10 . 设实数
,
满足约束条件
则
的取值范围是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/102b177da18761ca156d2fb094deb3c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a685635bbf874fa92d123cde3becf2.png)
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