June 3rd, 2017, 12:50 PM  #1 
Newbie Joined: Oct 2015 From: rotterdam Posts: 8 Thanks: 1  limit sequence
Hello, I don't understand what sequence cn is (see attachment). Who can help me? 
June 3rd, 2017, 01:32 PM  #2 
Math Team Joined: Dec 2013 From: Colombia Posts: 6,970 Thanks: 2290 Math Focus: Mainly analysis and algebra 
$c_n=\frac{27}{2n}$

June 4th, 2017, 05:25 AM  #3 
Newbie Joined: Oct 2015 From: rotterdam Posts: 8 Thanks: 1 
I understand that Cn = 27/2n. But why Cn = 27/2n? Is that the only option?

June 4th, 2017, 06:46 AM  #4 
Math Team Joined: Dec 2013 From: Colombia Posts: 6,970 Thanks: 2290 Math Focus: Mainly analysis and algebra 
No, just one of the many that work. It's easy to make the comparison with the other expression because all the terms omitted are less than or equal to 1.


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