WebMar 3, 2015 · Best Answer. #2. +23227. +5. To find the explicit formula of geometric sequences, you'll need to find a formula for the n th term. In symbols, the n th term of a geometric sequence is: t n = a·r n-1. a = first term and r = common ratio. To find the common ratio, divide any term by its preceding term. WebLet's find an explicit formula for the sequence. Remember that we can represent a sequence whose first term is \greenE A A and common difference is \maroonC B B with the …
4 Ways to Find Any Term of an Arithmetic Sequence - wikiHow
WebSep 16, 2024 · We will use the explicit formula {eq}a_n = a_kq^{n-k} {/eq}, because, in this case, we are given {eq}a_4 = 5 {/eq}, but not the value of {eq}a_1 {/eq}. WebApr 22, 2024 · How do you find the explicit formula for the following arithmetic sequence 123, 116, 109, 102, 95, ...? Precalculus Sequences Arithmetic Sequences. 1 Answer Hriman Apr 22, 2024 #a_n= 123-7(n-1)# Explanation: When defined explicitly: ... How do I find the common difference of an arithmetic sequence? marginalisation in economics
Writing Explicit Formulas for Arithmetic Sequences - YouTube
WebNov 25, 2024 · The explicit formula for an algebraic sequence is . The term a (n) can be read as “the nth term of a,” where n represents which number in the list you want to find and a (n) is the actual value of that number. For example, if you are asked to find the 100th item in an arithmetic sequence, then n will be 100. WebA lesson on the basics of Arithmetic Sequences: common differences, writing recursive rules, the process that yields the rule for explicit formulas. It als... WebThe explicit formula is used to find the term of a sequence irrespective of information about its previous term. For example: The recursive formula to find the n th term of AP is: a n = a n-1 + d The explicit formula to find the n th term of AP is, a n = a + (n - 1) d marginalisation in france