Question

Given the recursive formula: a1=3 an=2(an-1+1)

State the values a2 a3 and a4 for the given recursive formula

Answer 1

Using the recursive formula a1=3 and an=2(an-1+1), we can find the values of a2, a3, and a4 as follows:

a2 = 2(a1 + 1) = 2(3 + 1) = 8

a3 = 2(a2 + 1) = 2(8 + 1) = 18

a4 = 2(a3 + 1) = 2(18 + 1) = 38

Therefore, the values a2, a3, and a4 for the given recursive formula are 8, 18, and 38, respectively.