PLLLZ HELP Write a recursive formula for finding the nth term of each geometric sequence.
5, 20, 80, ...

a1 = 20, an = 4an − 1

a1 = 80, an = 4an − 1

a1 = 5, an = 4an − 2

a1 = 5, an = 4an − 1

Step-by-step explanation:

The first term of the geometric sequence is

.

The common ratio between the consecutive terms is

therefore, we see that the nth term is found by

Thus, the recursive formula for the geometric sequence is

step-by-step explanation: