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已知递推公式(2n+1)an+1=(3n+1)an,求an的通项公式.谢谢啦,数学大神额,不好意思,等式左边是an+1,n+1是脚标
come into use的use是名词词性对吗
quite 后面为什么加的是形容词?因为它是副词么?跟quite用法、意思差不多的还有那些?
a quite busy man / quite a busy man这两个有什么区别吗,这俩答案都有,可是说选后一个.王八的臀部 怎么理解 老兄
summary judgment是什么意思
detailed summary是什么意思
A man walked into a restaurant that advertised having the longest menu in the world.The manager was very proud of being able to provide any dish,no matter how unusual.At the bottom of the menu,there was a notice that said,“If you do not see the dis
求2x*x-4x+3的最大值或最小值
The boss, __restaurant I am serving, is a kindhearted man
求最值√(3-4x)+√(1+2x)的最大值和最小值
Zhang is his ( ) name.
The man in the restaurant called the head waiter in to complain ____ the food
With Xiao Ming's help,Zhang Lin does his homework _____than before A much more carefull B more carefully C much carefully 要原因
线性代数题,求解释如何求行秩,行秩,行列式秩
Usually ,( ) a waiter in a restaurant,raise one hand to head level or above .A,calling B,to call C,call D,having called.选哪一个,
请拨6127348找Zhang ming用英语怎么说
xiao ming在学习上又以下问题.请你以专家身份给他提几点建议 用英语 尽量把水准控制在九年级(初三)左右xiao ming's problem:l am always nervous when l listen to english,what should l do?
找规律的,看看卡片上的圆点数量,卡片是怎样排列的,在空白卡片上应画几个圆点?
从第二个开始,每条边上有n个圆点(n大于或等于2)每个圆点得总个数为s,按规律推断s与n地关系式是——题目为怎样学好初中数学第三章达标测验B卷一题填空题23,因为我不知道过程是怎样
We walked ( )the restaurant.(at,past) 选其中一个
C语言比较数列中前后两个元素的大小例如有一数组{1.3.5.4.2},输出前一元素比后一元素大的情况,即:例子输出结果应为:(3,2),(5,4),(5,2),(4,2).这样的程序如何用C语言表达?
请拨612-7348找Zhang Ming.用英文怎么说?
汉译英:请拨612-7348找zhang ming.zhang ming是一个人名.这是一道英语题,在初一寒假生活知道里面.请给我一个正确的不能再正确的标准答案!我谢你!
请拨612-7348找Zhang Ming用英语怎么说
Zhang Ming,Can you say English?哪一处地方错了?
法语的元音字母?哪位高手知道法语的元音字母有哪些?怎么读?”ç”是什么?
法语中元音字母到底有几个?
每条边上n(n≥2)个圆点,每个图案中圆点的总和等于s,按此规律推断出,s 与n只见的关系为
法语中的鼻元音是接元音字母而失去鼻化音吗?那inhabituel呢?h不是元音字母呀?
法语中说ay+元音字母,y前后均为元音字母,可视为i+i,求详解
the( )woman is my aunt A forty years old B forty- year -old C forty- years- oldDforty years' old
My father has two brothers.如何改一般疑问句大神们帮帮忙