Question

Evaluate this summation!

Answer 1

@math&ing001

Answer 2

well its the limiting sum of a geometric series

the terms are 1 + 1/2 + 1/4 + 1/8 +.........

the limiting sum is

\[S_{\infty} = \frac{a}{1 -r}\]

a = 1st term and r = common ratio

hope this helps

Answer 3

May you help with one more? @campbell_st

Answer 4

well you should start by writing out a few terms.... to see whats happening... as I did

I identified the problem as a geometric series... with a common ratio -1<r<1

then used what I knew...

try that approach.

Post it as a new question as the messaging system doesn't work...