This means the following term is double the previous term. Where n position of the term term number a n n th term the next term of the sequence a n 1 term before n th term. If you put n1 into the S n formula you get that the sum of the first 1 terms 211.
1 x 2 4 16.
What is the formula for the nth term of a geometric sequence with a4 16 and r 12. A 16 15 2. 2 The nth term of a a geometric sequence is given by an27 01 n-1. Leave answer in fraction form.