If you know the n th term and the common ratio r of a geometric sequence you can find the n 1 th term using the recursive formula. For example assume a formula as follows. RECURSIVE METHODS Thus we conclude that a n a n 1 a n 2.
Use Recursive Functions in R to Find Sum of Series 1²2²3²n².
Substitute the common ratio into the recursive formula for a geometric sequence. This is the common ratio. The second term is as follows. Use Recursive Functions in R to Find Sum of Series 1²2²3²n².