Question

plse solve this

Answer 1

http://www.wolframalpha.com/input/?i=limit+n-%3E+infinity+%5B+%281%2F3%29+%2B+%281%2F3%5E2%29+%2B%281%2F3%5E3%29+%2B.............%2B%281%2F3%5En%29%5D

Answer 2

This is a series in GP

Answer 3

with r<1
so
Sn=\[\frac{ a }{ 1-r }\]
so here a=1/3 and r=1/3

Answer 4

on substituting, you will yield the result

Answer 5

as n tends to infinity u can use the formula for Sum to Infinite G.P as Mentioned by Joseph

Answer 6

okay
a= 1/3
r=?

Answer 7

r = common ratio or difference

Answer 8

and that is -2/9

Answer 9

Sorry it is common ratio since it is a GP

Answer 10

r = t2/t1

Answer 11

t2 = second term

t1 = 1st term

Answer 12

srry
9/3=3

Answer 13

1/3

Answer 14

Yup

Answer 15

@Joseph91
& @Yahoo! thank u