早教吧
育儿知识
作业答案
考试题库
百科
知识分享
创建时间
资源类别
相关度排序
共找到 282 与T=an 相关的结果,耗时12 ms
i an speak english.t can speak chinese too.改成not only…but…as well句型
英语
The children had an a____ about what game to play, but they didn't reach an agreement.首字母填空
英语
一定要快点T^T Miss li wad in china last year 肯定句 I w一定要快点T^T Miss li wad in china last year 肯定句 I was at the library an hour ago 否定句
英语
英语翻译My life is brilliant.My love is pure.I saw an angel.Of that I'm sure.She smiled at me on the subway.She was with another man.But I
英语
won't lose no
数列{an}的前n项和Sn=-n²;,数列{bn}满足b1=2,bn+1=3bn-t(n-1),已知an+1+bn+1=3(an+bn)对任意实数n属于正整数都成立1.求t2.设数列{an²+anbn}的前n项和为Tn,问是否存在不相等的正整数m,k,r,使
数学
成等差数列,且Tm+1,Tk
设函数{an}的前n项和为Sn,且Sn=n²;,数列{bn}满足bn=an/an+m,m∈N是否存在m,使得数列{bn}中存在某项bt满足b1、b4、bt(t∈N﹢,t≥5)成等差数列?若存在,请指出符合题意的m的个数;若不存在,请说明
数学
已知数列{an}的前n项和Sn=2n²+2n,数列{bn}的前n项和T=2-bn,已知数列{an}的前n项和Sn=2n²+2n,数列{bn}的前n项和Tn=2-bn,求这两个数列的通项公式.
数学
take,don·t,to,an,with,umbrella,you,forget 连词成句
英语
Everybody __(need) exercise every dayMy father is very __(care) when driving .He never drives fast.The host has an interview __the fam
英语
us singer.(介词填
英语翻译1.An invitation to the cinema DEAR jane,I hope you don"t have any plans for the weekend of September 24th as I would like you to s
英语
end it with me
<
2
3
4
5
6
7
8
9
10
11
>
热门搜索: