Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
← 55 members online
 0 viewing
snickerzzz
Group Title
how do you find the sum of the series sigma n=0 ; 4 (cosn*pi) (3/4)^n
 one year ago
 one year ago
snickerzzz Group Title
how do you find the sum of the series sigma n=0 ; 4 (cosn*pi) (3/4)^n
 one year ago
 one year ago

This Question is Open

RONNCC Group TitleBest ResponseYou've already chosen the best response.0
use the equation maker
 one year ago

snickerzzz Group TitleBest ResponseYou've already chosen the best response.0
\[\sum_{n=0}^{\infty} 4 (\cos n \pi) (\frac{ 3 }{ 4 })^{n}\]
 one year ago

RONNCC Group TitleBest ResponseYou've already chosen the best response.0
are you sure it is till infinity?
 one year ago

TuringTest Group TitleBest ResponseYou've already chosen the best response.0
Perhaps you can use some trig identities in conjunction with the ratio test.
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.