What is the recursive rule for this geometric sequence? 2, 1/2, 1/8, 1/32 answer your answers in the boxes a =_•an-1 a1=_

The given sequece is

And we have to find the recursive formula of this geometric sequence.

First term is,

And the common ratio,

So the recursive formula is

1 2/5 - (-3/5)

First, we're going to convert 1 2/5 into an improper fraction.

1 2/5 = 7/5

7/5 - (-3/5)

Subtracting a negative is the same as adding, so the problem will look like:

7/5 + 3/5

The denominators are the same, so we just add the numerators.

The answer is 10/5, or 2.