百度试题 结果1 题目Find the sum of the arithmetic sequence.∑_(i=1)^∑(2i-3) 相关知识点: 试题来源: 解析 =3601a_1=2(1)-3=-1 a_(20)=2(20)-3=37 20 反馈 收藏
Answer to: Find the sum of the finite arithmetic sequence. -5 + (-3) + (-1) + 1 + 3 + 5 By signing up, you'll get thousands of step-by-step...
Answer to: Find the sum of the finite arithmetic sequence. Sum of the integers from -100 to 30 By signing up, you'll get thousands of step-by-step...
80,此數列為等差數列,等差數列之和為首項加尾項乘項數除以2;首項加尾項為,項數為,因此本題答案為82×14÷2=574.结果一 题目 求以下等差數列中所有偶數之總和.Find the sum of all even numbers in the following arithmetic sequence.2,5,8,11,14,17,20,,83 答案 574.相关推荐 1求以下等差數列中所有...
If|x|<1and|y|<1,find the sum of infinity of the following series:(x+y)+(x2+xy+y2)+(x3+x2y+xy2+y3)+ View Solution Find the sum of the seriesx(x+y)+x2(x2+y2)+x3(x3+y3)+……→infinity where|x|<1and|y|<1.
To find the sum of the firstnterms of the sequence1+4+13+40+121+..., we will follow these steps: Step 1: Identify the nth term of the sequence Let's denote the nth term of the sequence asTn. We observe the sequence: -T1=1 ...
百度试题 结果1 题目Find the nth term of each arithmetic sequence described.a_1=10,d=-5,n=21 相关知识点: 试题来源: 解析 —90 反馈 收藏
Arithmetic sequences, the pattern of progressing numbers, can be classified by finding the difference between numbers in the sequence and then notating them into a formula. See the process of the two standard formulas used, as well as how to find them using terms. ...
【题目】Find the Sum of the Infinite Geometric Series1/3,2/3,1,4/3,5/31/3 2/3 4/3 5/3 答案 【解析】T his is an arithmetic sequence since there isa common difference between each term. In this case, adding to the previous term in thesequence gives the next term. In other words...
An arithmetic sequence is a set of numbers in which the difference between consecutive terms is constant. The sum of an arithmetic sequence is calculated by using the formula given below: {eq}{S_n} = \dfrac{n}{2}\left[ {2{a_1} + \left( {n - 1} \right)d} \right]...