How recursive formulas work. An an-1 1 a1 1. Below are several examples of recursive sequences.
An n 1 Recursive formula.
1 2 3 4 Formula. A recursive formula allows us to find any term of a geometric sequence by using the previous term. Then we have to figure out and include the common difference. A recursive formula is a formula for a sequence that depends on one or more of the earlier terms in the sequence.