108 reputation
4
bio website
location
age
visits member for 2 years, 3 months
seen Sep 8 at 16:00

As of now, there isn't really much to say.


Aug
27
comment Convergence demonstration?
thank you! although, from where do we get that $|a|<1$? I mean, $|a|$ could just as easily have a value bigger than $1$; or are both cases possible? that is, as per the ratio test, the series will converge if $|a|<1$ and it will diverge if $|a|>1$?
Aug
27
comment Convergence demonstration?
@DrKW sorry, that was supposed to be a comma. And yes, I'd appreciate an explanation of how the ratio test works.