## anonymous one year ago Determine whether the sequence converges or diverges. If it converges, give the limit. 7, 14, 28, 56, ... Converges; 49 Converges; 105 Diverges Converges; 217

1. anonymous

Do you know how to find the common ratio, r?

2. anonymous

no

3. anonymous

r = (2nd #)/(1st #)

4. anonymous

so it would be 98?

5. anonymous

Then after you have r: If |r| > 1, the series diverges If 0<|r|<1, the series converges to $S_n=\frac{ a_1 }{ 1-r }$

6. anonymous

r = 14/7 = 2

7. anonymous

ohhh divide not multiply ok i get it, so it diverges?

8. anonymous

yes

9. anonymous

thank you!

10. anonymous

you're welcome