4.Given the first and last terms,find the sum of the arithmetic series.a) a=6,t(9)=24c) f(1)=5,f(10)= -13 相关知识点: 试题来源: 解析 1,1/2(5+8+11+……+200)=1/2(5+200)*65/2=13325/42.根据题意,可知题为找规律,第一个数为6,最后一个为24,可用,(24-6)/9=2可知,...
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
The sum of an arithmetic sequence can be obtained using its first and last terms and its number of terms {eq}n {/eq}. That is, the formula for the sum of an arithmetic sequence is: {eq}S_n = \displaystyle \frac{n}{2}(a+l) {/eq} ...
Learn more about this topic: Sum of Arithmetic Sequence | Formula & Examples from Chapter 21 / Lesson 6 443K Learn what an arithmetic sequence is and explore different examples of an arithmetic sequence. Understand how to find the sum of an arithmetic sequence. ...
Find the sum of the seriesx(x+y)+x2(x2+y2)+x3(x3+y3)+……→infinity where|x|<1and|y|<1. View Solution n View Solution Write down the terms of the expression:8x4y−7x3yz+43x2yz2−5xyz. What is the coefficient ofx2in the term43x2yz2?
Find sum to n terms of the series3+5×14+7×142+... View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium NCERT Solutions for Class 11 English Medium NCERT Solutions for Class 10 English Medium NCERT Solutions...
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...
According to the problem, we have a series given as 1, 3, 5, 7, 9,……. We need to find the sum of the elements in this series up to n terms.We know that an Arithmetic Progression (AP) is of form a, a+d, a+2d,…….., where ‘a’ is know...
【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...
Arithmetic Series: Formula & Equation from Chapter 26 / Lesson 8 28K An arithmetic series is the sum of a sequence in which each term is computed from the previous one by adding (or subtracting) a constant. Discover the equatio...