## anonymous 3 years ago Determine whether the sequence converges or diverges. If it converges, give the limit. 11, 22, 44, 88, ...

1. campbell_st

well the common ratio is r = 2... so the sequence is divergent...

2. anonymous

okay thank you! can you help me with a couple more question? @campbell_st

3. campbell_st

sorry I have to go but for convergence the common ratio is -1 < r < 1 so if thats the case the limiting sum is $S_{\infty} = \frac{a}{1 - r}$