Method 1: $$ f ( n ) = 2 n + 1 $$ From (46.1.2),we have $$ a _ { n } = a _ { 1 } + \sum _ { k = 1 } ^ { n - 1 } ( 2 k + 1 \\ = 1 + \left[ 3 + 5 + \cdots + ( 2 n - 1 ) \right] \\ = 1 + \frac { ( 3 + 2 n - 1 ) ( n...
1In Exercises, the general term of a sequence is given. Determine whether the sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio. 2【题目】In Exercises, the general term of a sequence i s ...
Find a formula for the general term, a_n. Assume that the first term in the sequence is a_1: \{\frac{3}{4}, \frac{4}{9}, \frac{5}{16}, \frac{6}{25},... \} Find a general term for the given sequence a1, a2, a3, a4,...13, 19, 25, ...
①It is difficult ①to the point of impossibility for the average reader under the age of forty②to imagine a timewhen high-quality arts criticism could be found in most big-city newspapers.对那些年龄在四十岁以下的普通读者来说,要去想象一个可以在大多数城市的报纸中发现高质量艺术评论的时代是非...
This is a full guide to finding the general term of sequences. There are examples provided to show you the step-by-step procedure for finding the general term of a sequence.
9. (a)The general term of a sequence is T_n=n^2-3n+4 . Find its 4th term.(b)Consider the sequence 38, 36, 34, 32 ...(i) Find the next term.(ii) Find its general term.(iii) Find the 50t term. 相关知识点: 试题来源: 解析 9aT T_4=4^2-314)+4 =8 9bi T_...
百度试题 结果1 题目 In the following exercises, find a general term for the sequence whose first five terms are shown. 相关知识点: 试题来源: 解析 a_n=e^(n+2) 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)...
Write a formula for the nth term of the sequence (1,−18,127,...), assuming the pattern continues.nth Term of a Sequence:To identify the pattern of the given expression, we try to rewrite the succeeding terms in terms of the initial term. For ins...
there in fact is no grammaticalization — in the sense that what is often called ‘grammaticalization (theory)’ is actually an epiphenomenon which results from the intersection and interaction of other, independently motivated domains relevant for the synchronic and diachronic functioning of language (...