an introduction vol1 1:03:45 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...
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...
This is a geometric series of the form an=12n Then the series is: 1+12+14+18+⋯⋯=∑i=1∞12n=11-12=2∵sumofinfiniteGP=a1-r,a=firstterm,r=commonratio Suggest Corrections 0 Similar questions Q. Lucas is learning the number series problem in his math class. X, 4, XV, 16, XX...
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 ...
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 。
What Is the Geometric Sum Formula in Math? In math, the geometric sum formula refers to the formula that is used to calculate the sum of all the terms in the geometric sequence. The two geometric sum formulas are: The geometric sum formula for finite terms: If r = 1, Sn = an and ...
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...
an=ran−1 An example of a geometric sequence with starting number 3, common factor 2 and eight terms is 3, 6, 12, 24, 48, 96, 192, 384. Calculating the last term using the general form listed above, the term is: a8=3×28−1=3×27=3×128=384 ...
百度试题 结果1 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 ...