题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063436-39151.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063436-53006.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063436-64218.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063436-42637.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063436-72593.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:末项为奇数项的一项,设等比数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063436-39151.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063437-33083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063437-84937.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063437-12521.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063438-23367.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063438-36987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063438-86531.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063438-32873.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063428-76598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063428-72895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063429-71321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063429-13528.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063429-84963.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063429-34948.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063429-88604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063430-46959.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063414-46669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063414-31042.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063414-53202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063414-62712.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063414-86216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063414-38440.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063414-46669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-89651.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-29162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-94147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-89651.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-89860.png)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-91964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-89860.png)
(Ⅱ)若对于任意不超过
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-82858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-23662.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063415-26506.png)
(Ⅲ)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063416-91749.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063416-96997.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063416-19061.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063351-61822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063351-45744.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063351-12974.png)
(Ⅰ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063351-88199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063352-78394.png)
(Ⅱ)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063352-85786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063352-22302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063352-57953.png)
(Ⅲ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063352-54375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063353-53250.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063352-22302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063352-57953.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063353-27088.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063353-44819.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063335-71282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063335-82505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063336-45237.png)
(Ⅰ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063336-29926.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063336-37820.png)
(Ⅱ)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063336-65284.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063336-99614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063337-43143.png)
(Ⅲ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063337-58604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063337-50987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063337-30208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063326-31463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063326-88141.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063326-92215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063327-75071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063327-72287.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063327-85368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063327-21554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014063328-47462.png)
最新试题
- 1已知:①反应2FeCl3+SO2+2H2O=FeCl2+FeSO4+4HCl 和反应P4+5O2=2P2O5 一样,都属
- 22011年3月10日,吴邦国委员长在十一届全国人大四次会议庄重宣布,一个立足中国国情和实际、适应改革开放和社会主义现代化
- 3为测定某盐酸中溶质的质量分数,小荣同学取该盐酸样品50g,向其中加入过量锌粒,完成反应后收集到0.3g氢气,请完成下列计
- 4下列向量中与向量a=(1,2)垂直的是( )A.b=(-1,2)B.c=(-2,4)C.d=(-3,6)D.e=(-6
- 5已知全集U=R,集合A={x|x<1,或x>2},集合B={x|x<-3,或x≥1},求CRA,CRB
- 6若向量=
- 7在2008年北京奥运会开赛第一天,我国射击名将杜丽因应对压力的准备不足,结果与奖牌无缘。这说明[ ]①杜丽虚伪,
- 8春 桃树、杏树、梨树,你不让我,我不让你,都开满了花赶趟儿。红的像火,粉的像霞,白的像雪。花里带着甜味儿;闭了眼,树上
- 9实验室里,澄清石灰水一般盛放在 _________ 瓶中;量取一定体积的液体要用到的仪器是 _________ .
- 10下列说法正确的是(NA表示阿伏加德罗常数)( )A.标准状况下,以任意比例混合的甲烷和丙烷(C3H8)的气体混合物11
热门考点
- 1质量为m=0.5kg的小球,从地面以速率vo=10m/s向上抛出,与距地面高h=3.2m的天花板相碰,碰后又落回抛出点,
- 2从方框中选出最佳答案完成对话,有两项是多余的。(填序号即可) A: Hi, Li Fang. You look unha
- 31959年“反右倾”斗争造成的最严重的后果是 [ ]A、严重损害了中国共产党内的民主生活 B、使经济领域“左”的
- 41926年广东国民政府北伐的目的是[ ]A.消除内乱,打倒军阀B.打土豪,分田地C.统一中国为真正的民主共和国
- 5求当m为何值时,f(x)=x2+2mx+3m+4.(1)有且仅有一个零点;(2)有两个零点且均比-1大;
- 6各物质之间的转换关系如下图,部分生成物省略。已知:①常温下,D、F、G、L为气体;C是日常生活中的常见金属; ②K的应用
- 7下列语句,描述天气现象的是( )A.随风潜入夜,润物细无声B.四季如春C.一山有四季,十里不同天D.早穿皮袄午穿纱
- 8如图,等腰△ABC中,AB=AC,AD是顶角∠BAC的外角的平分线。证明:AD∥BC。
- 9日本发展工业的不利条件是[ ]A.海岸线曲折,多海湾B.人口众多,劳动力充足C.岛国,多海湾,海上运输便利D.矿
- 10(1)loga2+loga12(a>0且a≠1);(2)lg20+log10025;(3)23×612×332.