皮皮学，免费搜题
登录
搜题
【简答题】
设集合W是满足下列两个条件的无穷数列{a n }的集合： ① ② ，其中n∈N * ，M是与n无关的常数 (1)若{a n }是等差数列，S n 是其前n项的和，a 3 =4，S 3 =18，试探究{S n }与集合W之间的关系； (2)设数列{b n }的通b n =5n-2n，且{b n }∈W，M的最小值为m，求m的值； (3)在(2)的条件下，设 ，求证：数列{C n }中任意不同的三项都不能成为等比数列．
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】A vegetarian could die from insufficient protein ingestion if he or she ______.
A.
did not follow a varied and properly protein-complemented diet.
B.
ate too many animal proteins, and could not digest them properly.
C.
did not follow a diet in which nonessential proteins were ingested.
D.
ate too many low-quality proteins.
【简答题】征地案例比较测算法
【多选题】征地案例比较测算法中，下列说法正确的有（）。
A.
需要选择两个以上有代表性的征地案例
B.
案例应是近两年之内发生的，并发生在本区片或其他可比区片的项目
C.
在使用案例前，要对案例的合理性进行判断
D.
征地案例的可比内涵要与征地区片价的设定内涵一致
E.
在对案例进行整理时，不需要将青苗补偿费附着作物补偿费和其他额外损失的补偿费用等剔除出去
【简答题】At present, more and more people love traveling. It's a very good 1 of getting to know new people and cultures and acquiring experiences. It helps travelers to 2 a lot. Travel can make our minds becom...
【简答题】When _____ was young, he visited many scenic spots and places of historical interest. Later, he lived among the poor at the bottom of the society. His turbulent experiences enabled him to know better ...
【简答题】Roommate conflicts are part of manu people's college experiences and can be ________. (stress) 用所给词的适当形式填空
【单选题】The author supports his ideas mainly by providing __________.
A.
facts and examples
B.
statistics
C.
different people's experiences
D.
reasons and explanations
【判断题】As people's income rise, they are more likely to prefer additional experiences over additional possessions.
A.
正确
B.
错误
相关题目：
参考解析：
知识点：
题目纠错 0
发布
