It is known that , , , and is an arithmetic sequence, and each term is a prime number. Find the largest value of . 相关知识点: 试题来源: 解析 . 由于公差为, 所以五项除以的余数均不相同, 余数分别为、、、和, 即其中一项必为的倍数, 然而五数均为质数, 故其中一项必然为, 得,即为答案.反...
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...
◆A certain characteristic in a large population has a distribution that is symmetric about the mean m 数据分布关于平均数m 成对称分布注意联系正态分布图 ◆An arithmetic sequence is a sequence in which each term after the first is equal to the sum of the preceding term and a constant 给出等...
In an arithmetic sequence, the second term is 8 and the fifth term is 17. What is the
Suppose that \{a_n\} is an arithmetic sequence with what is the value of? Express your answer as a common fraction. Sum =N/2*[2F + (N - 1) * D, where N=Number of terms, F=First term, D=Common difference. First term =101/200, Common difference =1/100, Number of terms =...
Example 2: In an arithmetic sequence a, the sum of first n terms is Sn. I fS_3=6 , a_1=4 , find the common difference d. It is ( ).(A)1( B 5/3(C)-2(D)3 相关知识点: 试题来源: 解析Solution: (C) Method 1: By formula(3), we have d3 1 3 1 3 1 2 3-1 2 2...
If the arithmetic difference between consecutive terms is the same for all the sequences, then it has a common difference,d, and is an arithmetic sequence. an+1=an+d Step 2: If the sequence fromStep 1has no common difference, test for a common ratio. ...
Arithmetic is a branch of mathematics. Arithmetic includes different mathematical operations such as addition, subtraction, multiplication and division. Learn the basics of arithmetic with examples at BYJU’S.
百度试题 结果1 题目【题目】In an arithmetic sequence, what is the relationship between the second term + eighth term and the fourthterm+sinthterm? 相关知识点: 试题来源: 解析 【解析】a_2+a_8=a_4+a_6 反馈 收藏
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)...