a) Find A and B such that (56)* (8k+1_7ki1)(8* _ 7k) 7* A 7* B ge+1_7k+1 b) Use the result in part a) to find a closed form of the nth partial sum of the series (56)* 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 71E
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a) Find A and B such that
(56)*
(8k+1_7ki1)(8* _ 7k)
7* A
7* B
ge+1_7k+1
b) Use the result in part a) to find a closed form of the nth partial sum of the series
(56)*
and then find the sum of the series.
(56)*
(8k+1_7*i1)(8* _7*)
7k A
7* B
Türkçe: a)
olacak şekilde A ve B değerlerini bulunuz.
b) a)'daki ifadeyi kullanarak önce aşağıdaki serinin n'inci kıIsmi toplamını, sonra da serinin toplamını bulunuz:
(56)*
Lk-1 (8k1 7h:1)(8* _7*)
7"
О А-7, В %— —1,S, — 8
Sum = 8
8"-7h
О А-7, В %— -1,S, — 7
7"
Sum = 7
%3D
8"7
A = 7, B= -1, S, = 7
Sum = 7
A = 1, B = -7, Sn = 8
Sum
8
8+1
ОА31,В %3D-7,S, — 7
,Sum = 7
%3D
8+1_7+1
Transcribed Image Text:a) Find A and B such that (56)* (8k+1_7ki1)(8* _ 7k) 7* A 7* B ge+1_7k+1 b) Use the result in part a) to find a closed form of the nth partial sum of the series (56)* and then find the sum of the series. (56)* (8k+1_7*i1)(8* _7*) 7k A 7* B Türkçe: a) olacak şekilde A ve B değerlerini bulunuz. b) a)'daki ifadeyi kullanarak önce aşağıdaki serinin n'inci kıIsmi toplamını, sonra da serinin toplamını bulunuz: (56)* Lk-1 (8k1 7h:1)(8* _7*) 7" О А-7, В %— —1,S, — 8 Sum = 8 8"-7h О А-7, В %— -1,S, — 7 7" Sum = 7 %3D 8"7 A = 7, B= -1, S, = 7 Sum = 7 A = 1, B = -7, Sn = 8 Sum 8 8+1 ОА31,В %3D-7,S, — 7 ,Sum = 7 %3D 8+1_7+1
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