Register
Dark Mode

Need help with Sigma summation equation

0 like 0 dislike
0 like 0 dislike
Need help with Sigma summation equation
by

2 Answers

0 like 0 dislike
0 like 0 dislike
Hint:

(1/2+1/4+1/8+1/16+1/32+...)

+(1/4+1/8+1/16+1/32+...)

+(1/8+1/16+1/32+...)

=1/2+2/4+3/8+...
by
0 like 0 dislike
0 like 0 dislike
Take the derivative of the geometric series and plug in 1/2. That pretty much gives it away, but it's a classic trick you'll want to recognize by the *n* on top.
by

No related questions found

33.4k questions

135k answers

0 comments

33.7k users

OhhAskMe is a math solving hub where high school and university students ask and answer loads of math questions, discuss the latest in math, and share their knowledge. It’s 100% free!
Link Copied!