Question

PLEASE HELP! I have a question on infinite geometric series! D: Attachment below.

Answer 1

@whpalmer4

Answer 2

@ganeshie8

Answer 3

@sidsiddhartha

Answer 4

take 5 out of the series
it'll look like
5(1-1/3+1/3^2-1/3^3+......)
=(5)*1/(1+1/3)=15/4 so option A
using this ::
Sum of infinite geometric series,
a + ar + ar^2 + ...
exists if -1 < r < 1 and its value is
= a / (1 - r). here r=-1/3

Answer 5

So you're telling me that the answer is A?

Answer 6

yeah

Answer 7

Thank you!