My learning curve:A year ago: translating a book in FrenchNow: comment conjuguer le verbe définir ?A year ago: get an A in analysisNow: what’s the formula for geometric sequence summation? 发布于 2021-01-19 11:11 赞同 分享收藏 写下你的评论... 还没有评论,发表第一...
45 Yuval Peres Coloring a graph arising from a lacunary sequence 59:15 Vojtěch Rödl On two Ramsey type problems for Kt+1-free graphs 47:07 Vilmos Totik Erdős on polynomials And Ben Green The sum-free set constant is ⅓ 1:45:31 Tomasz Łuczak Threshold functions a historical ...
The sum of an infinite geometric sequence is 12 and the first term is 3. What is the common ratio? A. 1/4 B. 1/3 C. 1/2 D. 2/3 相关知识点: 试题来源: 解析 C。根据无穷等比数列求和公式 S = a1 / (1 - q) ,可得 12 = 3 / (1 - q) ,解得 q = 1/2 。A 选项 1/4...
题目What is the first term of the geometric sequence when t = 1,536 and t = 12? A: 6 B: 2 C: 3 D: 9 相关知识点: 试题来源: 解析 C None 反馈 收藏
结果1 题目 The first and second terms of a geometric sequence are n and an, in that order. What is the 1,000th term of the sequence? ( ) A. a^(999)n B. a^(1,000)n C. a^(1,001)n D. (an)^(999) E. (an)^(1,000) 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
In a geometric sequence, the first term is 2 and the common ratio is 3. What is the 4th term? A. 18 B. 54 C. 16 D. 32 相关知识点: 试题来源: 解析 B。等比数列通项公式为 an = a1×r^(n - 1) ,将 a1 = 2,r = 3,n = 4 代入,可得 a4 = 2×3^(4 - 1) = 54 。
When this is the case, investigating the choice of a name can reveal interesting and unforeseen connections among mathematical topics. In this study, we tasked prospective and practicing teachers to consider: What is geometric about geometric sequences? Participants embedded their answers to this ...
A geometric sequence is defined by its starting number a, the common factor r and the number of terms S. The corresponding general form of a geometric sequence is: a,ar,ar2,ar3,...,arS−1 The general formula for term n of a geometric sequence (i.e....
There are two geometric sum formulas. One is used to find the sum of the first n terms of a geometric sequence whereas the other is used to find the sum of an infinite geometric sequence.Geometric Sum Formula1. The geometric sum formula for finite terms is given as: ...
it sounds complicated, but it’s really pretty simple. An arithmetic sequence is a sequence of numbers where the difference between any two successive elements is always the same constant value. For example, the sequence of years since the start of the new millennium is an arithmetic sequence:...