Question

Determine whether the geometric series is converges or diverges, if convergent find the sum of the series ∑_(n=1)^∞▒〖4(〖1/2)〗^k 〗

Answer 1

use equation editor
http://www.codecogs.com/latex/eqneditor.php

Answer 2

thanks

Answer 3

it converges r<1

Answer 4

thanks

Answer 5

what is the sum?

Answer 6

please

Answer 7

\[\large \sum_{n=1}^{\infty}4(\frac12)^k\] does n=k? or is k supposed to be n? O_o

Answer 8

at least write your equation well ... I can't say anything, i don't understand what you mean .. is that the above .. your question?

Answer 9

Use the p-series test

p= 1/2

\[\large p \le 1 \implies D\]\[\large p > 1\implies C\]

Answer 10

thank you

Answer 11

Np.

Answer 12

this is the questions

Answer 13

Can you please post the problem? :) Not sure i want to save your attachments on my computer.

Answer 14

can you solve it