A quick way of calculating the mean of an arithmetic sequence is to use the observation that, when the first and last terms are added, the sum is the same as when the second and next to last terms are added or the third and third to last terms. As a result, the sum of the sequen...
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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...
The sequence 2, 4, 6, 8,... is an arithmetic sequence. What is the common difference? A. 1 B. 2 C. 3 D. 4 相关知识点: 试题来源: 解析 B。解析:这个数列是等差数列,后一项减去前一项为定值,4-2=2,6-4=2,8-6=2,所以公差是 2。
故选A.结果一 题目 What is the 100th number in the arithmetic sequence: 1,5,9,13,17,21,25,?( ).A.397B.399C.401D.403E.405 答案 A相关推荐 1What is the 100th number in the arithmetic sequence: 1,5,9,13,17,21,25,?( ).A.397B.399C.401D.403E.405 反馈...
An arithmetic sequence is a list of numbers, called terms, where consecutive terms have a common difference. Each term in the sequence can be calculated by adding the common difference to the previous term. An example of an arithmetic sequence is {eq}\{4, 7, 10, 13, 16, ...\} {/...
We define an arithmetic sequence as a sequence which has a common difference between all consecutive terms. This sequence is very useful in simulating certain scenarios in which there is a common difference.Answer and Explanation: The general formula for the arithmetic sequence is An=A1+(n−1)...
The general formula for term n of a geometric sequence (i.e., any term within that sequence) is: an=arn−1 The recursive formula, which defines a term with respect to the previous term, is: an=ran−1 An example of a geometric sequence with starting number 3, common factor...
The recursive formula for an arithmetic sequence is:\(a_1=-8a_n=a_(n-1)+3.What is the 3rd term in the sequence?OA.-5O B. -14OC.-24O D.-2 相关知识点: 试题来源: 解析 a_1=-8 a_n=a_(n-1)+3 n=2then a_2=a_2+3 =a_1+3 =—8+3 a2=—5 n-3 then a_3=a_...
What is the nth term of a sequence? Answer and Explanation: There are two main types of sequences/progressions. Arithmetic Sequence - The difference between any two consecutive terms is the same for all... Learn more about this topic: ...