Let a n be the n th term of the series and d be the common difference.Īnswer: The recursive formula for this sequence is a n = a n-1 + 5Įxample 3: The 13 th and 14 th terms of the Fibonacci sequence are 144 and 233 respectively. Given that f(0) = 0.Įxample 2: Find the recursive formula for the following arithmetic sequence: 1, 6, 11, 16. With Cuemath, find solutions in simple and easy steps.īook a Free Trial Class Examples Using Recursive RuleĮxample 1: The recursive formula of a function is, f(x) = 5 f(x-2) + 3, find the value of f(8). Use our free online calculator to solve challenging questions. Let us see the applications of the recursive formulas in the following section. Where a n is the n th term of the sequence. The recursive formula to find the n th term of a Fibonacci sequence is: The recursive formula to find the n th term of a geometric sequence is: The recursive formula to find the n th term of an arithmetic sequence is: Recursive Formula for Arithmetic Sequence The following are the recursive formulas for different kinds of sequences. The pattern rule to get any term from its previous term.The recursive formulas define the following parameters: What Are Recursive Formulas?Ī recursive formula refers to a formula that defines each term of a sequence using the preceding term(s). Let us learn the recursive formulas in the following section. + a x-1 h(x-1) where a i ≥ 0 and at least one of the a i > 0 A recursive function h(x) can be written as: where the next term is dependent on one or more known previous term(s). A recursive function is a function that defines each term of a sequence using a previous term that is known, i.e. Before going to learn the recursive formula, let us recall what is a recursive function.
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