Question

Write an explicit formula to represent:
3,5,7,9....

Answer 1

a(n) = 3 + 2(n + 1)

Explanation:

Hi, jacob,

Each new term here is obtained from the previous one by adding 2. Thus the "common difference" is 2 and the explicit formula for a(n) is

a(n) = 3 + 2(n + 1)