Question

Write both an explicit equation and a recursive equation for the sequence 4, 2, 1.0.5.0.25

help pleasee​

Answer 1

Explanation:

This is a geometric sequence with first term a1 = 2 and common ratio r = 0.5.

an = a1 r^^n-1)

an = 2(0.5)^(n-1).

Recursive equation:

an = 0.5a(n-1) where n > 2