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Find the sum of the series. For what variables of x will this series converge?
 2 years ago
 2 years ago
Find the sum of the series. For what variables of x will this series converge?
 2 years ago
 2 years ago

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bahrom7893Best ResponseYou've already chosen the best response.0
3+x+x^2+x^3+.... idk what to do about that 3
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
well but the next one should have been 3x and then 3x^2, etc
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
@TuringTest any ideas?
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
hmmm let me read through the book once more..
 2 years ago

mathg8Best ResponseYou've already chosen the best response.0
By the limit test, the series does not converge.
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
It should though, for some values of x
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
im thinking partial sums or smth..
 2 years ago

mathg8Best ResponseYou've already chosen the best response.0
I need a refresh ... rusty
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
well yea but i gotta find an equation for Sum. and i can't figure out what a is
 2 years ago

mathg8Best ResponseYou've already chosen the best response.0
http://www.wolframalpha.com/input/?i=3%2Bx%2Bx%5E2%2Bx%5E3%2B....
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
or the other side could be like ((1/3)x)
 2 years ago

Ishaan94Best ResponseYou've already chosen the best response.2
\[3 + \frac{x}{1x}\] It only works if x<1
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
math, wolf can't compute this in terms of x. ohhhhhhhhhhhhhh Ishaain u're right.
 2 years ago

Ishaan94Best ResponseYou've already chosen the best response.2
And I am sure the series will converge only when x<1
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
actually im not sure now
 2 years ago

mathg8Best ResponseYou've already chosen the best response.0
you should try partial sums ...
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
that 3 is still bothering me.
 2 years ago

mathg8Best ResponseYou've already chosen the best response.0
what if you divide by 3?
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
then a get's screwed 1+(1/3)x+(1/3)x^2, etc..
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
@radar can u take a look?
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
hmm what if i start with x
 2 years ago

bahrom7893Best ResponseYou've already chosen the best response.0
duhh that's ishaan's answer, he was right. Thanks guys!
 2 years ago
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