a) Find A and B such that (12)* (4*+1_3k+1)(4* _3k) 3k A 4k_3k 3kB 4k+1_3k+1 b) Use the result in part a) to find a closed form of the nth partial sum of the series (12)* Ek-1 (ak+1_gki1)(4*_3*) and then find the sum of the series.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.1: Infinite Sequences And Summation Notation
Problem 72E
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a) Find A and B such that
(12)*
(4*+1_3k+1)(4* _3k)
3k A
4k_3k
3kB
4k+1_3k+1
b) Use the result in part a) to find a closed form of the nth partial
sum of the series
(12)*
k=1 (4k+1_gk+1)(4*_3*)
and then find the sum of the series.
(12)*
(4*+1_3k+1)(4* –3k)
3k A
+
4k+1_3k+1
3* B
Türkçe: a)
%3D
4k – 3k
olacak şekilde A ve B değerlerini bulunuz.
b) a)'daki ifadeyi kullanarak önce aşağıdaki serinin n'inci kısmi
toplamını, sonra da serinin toplamını bulunuz:
(12)*
Lik=1 (4k+1_3k+1)(4* –3*)
ОА- 1, В- —3, S, — 3 —
3"+1
4"+1_3n+1
,Sum = 3
O A= 3, B = -1, S, = 3
37+1
47+1_3n+1 >
Sum = 3
%3D
6.
O A= 1, B = -3, S, = 4 –
3+1
47+1_3n+1
Sum = 4
%3D
O A= 3, B = -1, S, = 3 -
3"
Sum = 3
%3D
4" -3" )
37
ОА-3, В — — 1, S, — 4
Sum = 4
%3D
%3D
Transcribed Image Text:a) Find A and B such that (12)* (4*+1_3k+1)(4* _3k) 3k A 4k_3k 3kB 4k+1_3k+1 b) Use the result in part a) to find a closed form of the nth partial sum of the series (12)* k=1 (4k+1_gk+1)(4*_3*) and then find the sum of the series. (12)* (4*+1_3k+1)(4* –3k) 3k A + 4k+1_3k+1 3* B Türkçe: a) %3D 4k – 3k olacak şekilde A ve B değerlerini bulunuz. b) a)'daki ifadeyi kullanarak önce aşağıdaki serinin n'inci kısmi toplamını, sonra da serinin toplamını bulunuz: (12)* Lik=1 (4k+1_3k+1)(4* –3*) ОА- 1, В- —3, S, — 3 — 3"+1 4"+1_3n+1 ,Sum = 3 O A= 3, B = -1, S, = 3 37+1 47+1_3n+1 > Sum = 3 %3D 6. O A= 1, B = -3, S, = 4 – 3+1 47+1_3n+1 Sum = 4 %3D O A= 3, B = -1, S, = 3 - 3" Sum = 3 %3D 4" -3" ) 37 ОА-3, В — — 1, S, — 4 Sum = 4 %3D %3D
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