Question

Which recursive formula can be used to generate the sequence below, where f(1) = 3 and n ≥ 1?

3, –6, 12, –24, 48,

Answer 1

Which recursive formula can be used to generate the sequence below, where f(1) = 3 and n ≥ 1?

3, -6, 12, -24, 48

The recursive formula for this sequence is

f (n + 1) = -2 f(n)

at n=1 f(n)= 3

at n = 2

f(2)=-2 (3) = -6

n = 3

f(3) = -2 (-6) = 12 and so on

hope this helps !!!!

Answer 2

f (n + 1) = -2 f(n)

Explanation: