I'm trying to the sum (of a series)

Question

anonymous · Answer

It would help if you posted the actual question.

anonymous · Answer

Give me a second to write it

anonymous · Answer

$$sum_{n=1}^{infty}  3/(5^n)  +   sum_{n=1}^{infty}  2/n$$

anonymous · Answer

does it make sense?

anonymous · Answer

anonymous · Answer

sum=  a/(1-r)    is the common ration for the 1st term (1/5)
and (1/2) for the second term

anonymous · Answer

I don't remember any of this, I think you're better off posting the question in chat. But that's what I got from wolfram alpha.

anonymous · Answer

Thanks for wolfram, but I need to be able to do this manually too... Thanks though

anonymous · Answer

It has something to do with r>1, but I'm not sure what.

anonymous · Answer

Here is how far I got...
|dw:1340220488073:dw|

this makes sense... but why is the second sum non convergent?