名校
1 . 现有10个数,它们能构成一个以1为首项,
为公比的等比数列,若从这个10个数中随机抽取一个数,则它小于8的概率是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-01-10更新
|
524次组卷
|
5卷引用:广东省潮州市2019-2020学年高三上学期期末数学(理)试题
广东省潮州市2019-2020学年高三上学期期末数学(理)试题广东省新兴第一中学2020届高三上学期期末教学质量检测数学(理科)试题山东省滕州一中2019-2020学年高三4月份线上模拟数学试题2020届山西省大同市第一中学高三下学期模拟(五)数学(理)试题(已下线)第十四篇概率01-2020年高考数学二轮复习选填题专项测试(文理通用)
名校
2 . 定义函数迭代:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f47b7099b2b6f1f5a09c1fa42368e7ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c3ef724cecaca2c47141a7452bad48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd566272839f638c5b48dcf5edc35a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d428eec05fdbc57cbfc2c39f5de2574.png)
已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f47b7099b2b6f1f5a09c1fa42368e7ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c3ef724cecaca2c47141a7452bad48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd566272839f638c5b48dcf5edc35a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d428eec05fdbc57cbfc2c39f5de2574.png)
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfc8affebde04424fd3e677e38a4dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6942113892f100984f0a56c992fe2ce.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 中国古代数学著作《算法统综》中有这样一个问题:“三百七十八里关,初步健步不为难,次日脚痛减一半,六朝才得到其关,要见次日行里数,请公仔细算相还”.其大意为:“有一个人走378里路,第一天健步行走,从第二天起脚痛每天走的路程为前一天的一半,走了6天后到达目的地”,则该人第4天走的路程为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-01-23更新
|
414次组卷
|
4卷引用:广东省东莞市2019-2020学年高二上学期期末数学试题
解题方法
4 . 已知数列
满足
,
,且
(
,且
),则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60302649eb940748da818199e55da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb2dd78aa7ac3df9b83c075bb13f415d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dff0b5dfbc0d9e15f0c9c9b16355d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85cc4b12b2d4b577233f34c5b101e270.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 设数列
是首项为1,公比为
的等比数列,若
是等差数列,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2348d5068480809ea002ebc2d3261b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348d0f0c953176b24553ba509a2a1807.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1210d087c0d2b444d73e807b3c44bb1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e897a721a8e36698aee1680f1a42dcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.4036 | B.4038 | C.4030 | D.4032 |
您最近一年使用:0次
6 . 等比数列
的前n项和为
,已知
,且
与
的等差中项为
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752be0fd4c0c308b1cb4eb2661c5b954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbeed5324c432101be517dd6f5c735b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59987307651c550e4c412650f7dbe79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9658fb1429b9378cdeb5316778391c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebace5c0b97181437f83f000bb7ccc81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.29 | B.31 | C.33 | D.36 |
您最近一年使用:0次
7 . 已知正项等差数列
满足:
,等比数列
满足:
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f442e2645550246f106f6128651861b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198906ec42baa6ee678cac6fe52e2618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3bb10e28f4c193cdd462fa817b117b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f442e2645550246f106f6128651861b1.png)
A.-1或2 | B.0或2 | C.2 | D.1 |
您最近一年使用:0次
名校
8 . 已知数列
满足
,且
,则数列
的通项是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ce9d5623b21817dd182b9058dc271a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-01-19更新
|
410次组卷
|
2卷引用:广东省肇庆市实验中学2019届高三第四次月考数学试题
9 . 已知数列{an}是等比数列,a1=5,a2a3=200,则a5=( )
A.100 | B.![]() | C.80 | D.![]() |
您最近一年使用:0次
名校
10 . 设Sn为正项等比数列{an}的前n项和,若S1+3S2﹣S3=0,且a1=1则a4=( )
A.9 | B.18 | C.21 | D.27 |
您最近一年使用:0次