Question

Determine whether the sequence converges or diverges. If it converges, give the limit.

11, 22, 44, 88, ...

Answer 1

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

Answer 2

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

Answer 3

sorry I have to go

but for convergence the common ratio is -1 < r < 1

so if thats the case the limiting sum is

\[S_{\infty} = \frac{a}{1 - r}\]