百度试题 结果1 题目 The sequence is either arithmetic or geometric. Find a formula for the nth term of each sequence. -2,1,4,7,...\ n=15 相关知识点: 试题来源: 解析 a_n=3n-5 反馈 收藏
For example, in the sequence 1, 4, 7, 10, 13, the first term is 1, the second term is 4, and so on. The nth term can be calculated using various methods, and Newton's Little Formula is one such approach. Newton's Little Formula states that the nth term of a sequence or ...
Explicit formula is useful to find any term of the sequence, without knowing the previous term. The explicit formula for the arithmetic sequence is an = a + (n - 1)d, and any term can be computed by substituting the n value for the term.
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...
Find a formula for the nth term of the sequence in terms of {eq}n {/eq}. {eq}\displaystyle \frac 16, \frac 59, \frac {5^2}{12}, \frac {5^3}{15}, \frac {5^4}{18}, \cdots {/eq} Arithmetic and Geometric Progression...
Let us see what is the formula for nth term of AP and how to derive it. We also use the formula and solve example problems.What is nth Term of AP?The nth term of AP is the term that is present in the nth position from the first (left side) of an arithmetic progression. An ...
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...
Learn to define what an arithmetic sequence is and discover the arithmetic sequence formula. Learn to find the nth term and sum of arithmetic...
Now, we've come up with a general formula, just a function of what our first term is, what our common difference is, and how many terms we're adding up. And so this is the generalized sum of an arithmetic sequence, which we call an arithmetic series. But now, let's ask ourselves...
We’ve just learned how to find the nth term of the geometric sequence, so it’s time for us to learn how to find the sum of a geometric series. Remember the difference between the arithmetic series and arithmetic sequence? The same reasoning applies concerning the difference between the geo...