an = 4n-²+2

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter6: Fractions
Section6.1: Simplifying Fractions
Problem 38WE
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Hey,

I again have 2 sequences ( picture) i am not sure how to prove convergence for.

For the first one I tried the (ε, δ)-definition of limit but dont get anywhere with it.

Is it sufficient for the second one if i just calculate the limit (limes) of the sequence and therefore proove that its capped and as a result converges?

 

(ε, δ)

(ε, δ)

(ε, δ)-definition of limit

an = 4n-²+2
Transcribed Image Text:an = 4n-²+2
Cn
=
5n³ - n²
2n² +n³
n
Transcribed Image Text:Cn = 5n³ - n² 2n² +n³ n
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Follow-up Question

Thank you for your solution. It has been very  helpful. Unfortunatly i struggle with the understanding:

1.) how/why does it go from 5n^3-n^2/2n^4+n^3 to 5n^3-n^2/2n^3+n^2  where does the n in the denominator go?

I also struggle with understanding the steps going from the term -5/2 to the term below. Can somebody explain it to me?

Thank you in Advance!

 

Cn=
사
30
...
13-32
234+m3
tm
Cn
5m
사
ตาม
n
곢
2+六
(cm) comvergen to 솜
5 -
=
wing (E-S) detimition
1cm - 2 1 = | 5m3-m²
233 + m²
(1
কান
세~
-
1
10m3-232-5 (2m3,m2)
2 (2n³+ m²)
3
1
Transcribed Image Text:Cn= 사 30 ... 13-32 234+m3 tm Cn 5m 사 ตาม n 곢 2+六 (cm) comvergen to 솜 5 - = wing (E-S) detimition 1cm - 2 1 = | 5m3-m² 233 + m² (1 কান 세~ - 1 10m3-232-5 (2m3,m2) 2 (2n³+ m²) 3 1
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