# Geometric Sequence and Recursive Definition

rought

## Homework Statement

In a Geometric Sequence find t10. t3 = 4 and t6= 4/27

Give a recursive definition for the sequence: 1, 4, 13, 40...

## Homework Equations

I know that a Geometric sequence is: tn=t1(r)n-1

And that a recursive formula starts off with tn-1

I'm not sure where to go from here...