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。
The sequence's general term or nth term is calculated using the formula, an=a1+(n-1) d where a1 is the first term, d is a common difference, n is the term position, and an is the nth term of the sequence. What is the formula for the common difference? The common difference for...
The common difference of an arithmetic sequence is 2 and the fifth term is 15. What is the first term? A. 5 B. 7 C. 9 D. 11 相关知识点: 试题来源: 解析 B。解析:设首项为 a1,根据等差数列通项公式 an = a1 + (n - 1)d,这里 a5 = 15,d = 2,n = 5,代入可得 15 = a1 +...
Therefore, the common difference of the arithmetic sequence is 6. How to find the nth of an arithmetic sequence? Usually, thenth term of an arithmetic sequence is defined by the first term and the arithmetic progression’s common difference. Thus, $a_n = a_1 + (n – 1) d$ where, $...
(1)We will call a sequence an arithmetic sequence if there is a common difference意思是我们称一个有相等差别的数列为算术数列,其实说白了就是我们的等差数列如1,3,5,7,9.(2)A Geometric Sequence is a sequence which the ratio of the common terms is equal.The general term is an = a1 * r...
(1)We will call a sequence an arithmetic sequence if there is a common difference意思是我们称一个有相等差别的数列为算术数列,其实说白了就是我们的等差数列如1,3,5,7,9.(2)A Geometric Sequence is a sequence which the ratio of the common terms is equal.The general term isan = a1 * r^...
Python Competitive Coding Questions | Arithmetic Sequences: This practice is based on Arithmetic Sequences in Python programming language. ByPrerana Jain, on April 23, 2020 Question In mathematics, when in anarithmetic sequenceis a sequence of numbers such that the difference between the consecutive ...
(b) gives 10a+50d=170(a)is 10a+45d=162Subtract 5d=8 so d=1.6 o.e.Solving for a a=17-5d so a=9(a) M1 for use of S, with n =10(b) 1st M1 for an attempt to eliminate a or d fro m their two linear equations2nd M1 for using their value of a or d to find the ...
Arithmetic sequences are simple but they have real life applications. If the starting point is known and the common difference can be found, the value of the series at a specific point in the future can be calculated and the average value can be determined as well. ...
In order to verify if a given sequence has an arithmetic pattern, we need to check if the difference between all pairs of consecutive terms is the same number. Observe the following sequences and determine whether or not they are arithmetic progressions. ...