题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043102-55140.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043102-40448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043102-77563.png)
A.3 | B.![]() | C.2 | D.![]() |
答案
解析
试题分析:∵数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043102-55140.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043103-74147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043103-26984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043103-97709.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043103-77876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043104-24962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043102-77563.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043102-36202.png)
点评:对于等差数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043104-53484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043104-59119.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043104-38296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043105-93024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043105-36834.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043105-60716.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043041-24912.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043042-69052.png)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043042-80945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043042-54652.png)
(II)若
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043042-32225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043042-33577.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043043-28345.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043033-42738.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043033-22568.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043033-35571.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043033-34312.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043034-72463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043034-91823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043034-55423.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043034-25592.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043033-42738.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043035-47036.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043034-25592.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043035-47036.png)
A.37和38 | B.38 | C.37 | D.36和37 |
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043012-39133.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043012-49488.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043012-44167.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043012-31734.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043012-39133.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043013-74049.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043012-49488.png)
(2)令
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043013-74336.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043013-35202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043013-15235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043013-26005.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012043014-13328.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012042931-21594.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012042931-30090.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012042931-38129.png)
A.![]() | B.![]() | C.5 | D.-1 |
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012042913-57784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012042913-65714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012042913-44584.png)
最新试题
- 1在探究“水的沸腾”的实验中:(1)A和B分别是甲乙两小组同学所做的实验.图C是他们绘制的沸腾图象.a图线所选择的装置应是
- 2若直线y=kx-2与抛物线y2=8x交于A、B两点,且AB中点的横坐标为2,求k的值.
- 3下列可以肯定侵犯公民肖像权的是[ ]A.在新闻报道中使用公民肖像 B.在寻人启事上使用失踪人的肖像C.私自把公民
- 4如图所示是________油机的四个工作冲程中的________冲程,该冲程是将________能转化为________
- 5阅读下面这首宋诗,回答问题。六月二十七日望湖楼醉书苏轼黑云翻墨未遮山,白雨跳珠乱入船。卷地风来忽吹散,望湖楼下水如天。(
- 6漫画《拖累》表明经济全球化[ ]①加剧了全球经济的不稳定②给世界经济安全带来威胁③导致经济发展不平衡,两极分化
- 7Suddenly, a tall man driving a golden carriage ________ th
- 8请将下面这则信息,概括为一句话新闻。(不超过25字)(5分)(2012—11—26北京中新电)中国铁道部表示,纵贯我国南
- 9如果A•B>0,则有A>0B>0或A<0B<0,根据以上信息试求5x-13x+2<0的解.
- 10周末,小陈同学陪妈妈逛商场,看到下图的情景,向妈妈解释了产生这一情景的下列几种原因,其中合理的是[ ]A.不正当
热门考点
- 1已知等腰直角三角形,其中, .点、分别是、的中点,现将△沿着边折起到△位置, 使⊥,连结、.求二面角的余弦值
- 2混凝土价廉且坚固耐压,但不耐拉,通常在混凝土建筑物须承受张力的部分用钢筋来加固,如下图所示.楼板和阳台的加固钢筋位置都正
- 3设随机变量若,则的值为( )A. B. C. D.
- 4合并同类项:3
- 5Mr.White is now in Beijing and runs a company ________ in Zh
- 6与旧三友主义相比,新三民主义的民权方面有了质的飞跃和进步,因为它A.提出反帝和国内民族平等B.倡导自由、平等、博爱C.主
- 7She decided to go to Shenzhen to ______ a better job.A.hunt
- 8(2007广州市水平测试)定义:对于函数f(x),在使f(x)≤M成立的所有常数M中,我们把M的最小值叫做函数f(x)的
- 9The doctor is trying to save the patient by every means ____
- 10已知命题p:|x-1|+|x+1|≥3a恒成立,命题q:y=(2a-1)x为减函数,若p且q为真命题,则a的取值范围是(