- #1
nomad2817
- 13
- 0
Homework Statement
Hi, there are two questions that I'm quite stuck with.
1.Find the number of terms in each of these geometric sequences.
a) 1,-2,4...1024
b) 54,18,6...2/27
Homework Equations
ar^n-1
The Attempt at a Solution
1. a) r= -2
1x-2^n-1 ?
b) r= 2
54x2^n-1?
I'm not familiar with having negative or dividing these sequences, however I understand the basics of dealing with a problem like this that is a positive and multiplication question.