Question

Complete the recursive formula of the geometric squence: 56, -28, 14, -7​

Answer 1

a(n) = (-1/2)a(n - 1) with a(1) = 56

Explanation:

Answer 2

Explanation:

Each new term is equal to -1/2 times the previous term:

a(n) = (-1/2)a(n - 1) with a(1) = 56 (Recursive formula).