+0  
 
0
306
1
avatar+644 


Let |r| < 1,
\(S = \sum_{k=0}^{\infty} r^k,\)
and

\(T = \sum_{k=0}^{\infty} k r^k\)
Our approach is to write T as a geometric series in terms of a and r .

Give a closed form expression for T in terms of r.

waffles  Feb 9, 2018
edited by waffles  Feb 10, 2018
 #1
avatar+73 
0

I need help in this one too. Please help....

amandapaolars  Mar 22, 2018

37 Online Users

avatar
avatar
avatar
avatar
avatar
avatar
avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.