Common Ratio.... (1 Viewer)

[omgiloverice]

the original question is to find the first 10 terms of this series [(2^n)+(2n-1)]

but I am having trouble finding the common ratio as the first 3 numbers are 3,7,13..

Don't judge me, I only slept for 2 hours

 

[nifkeh]

I don't think there's a common ratio (e.g. arithmetic progression, geometric progression), so you can only find the terms out using that formula

 

[nerdasdasd]

There's only a common difference between the terms .

 

[omgiloverice]

There's only a common difference between the terms .

I thought so too... but i found this question in an geometric series section.
EDIT: wait there isnt..